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  3. 奥岡製作所
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奥岡製作所

number of employees35
addressMie/Inabe-shi/Ibencho Sekibutsu 717-2
phone0594-74-2286
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last updated:Feb 27, 2020
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奥岡製作所 List of Products and Services

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Stainless Steel Receiver Frame [Product Information]

The stainless steel frame for the OK grating is designed to provide support for easy installation!

We will solve the "troubles" such as "it is difficult to determine the width of the receiving frame when creating a new groove and installing the receiving frame" and "the connection part of the receiving frame shifts and it is hard to align the height." [Contents] ■ Welding of width determination materials ■ Assistance for joint parts *For more details, please download the PDF or feel free to contact us.

  • Grating

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Various questions about receiving frames [Grating trivia]

List of "Specifications and Names" for receiving frames, including material and anchor specifications!

Do you have concerns like 'I don't really understand the specifications and terminology of the receiving frame'? We will provide information on the general 'specifications and terminology of the receiving frame.' [Contents] ■ List of 'Specifications and Terminology' for Receiving Frames ■ Material and Anchor Specifications *For more details, please download the PDF or feel free to contact us.

  • Grating

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About Specifications: [Trivia about Gratings]

About the specifications of steel types! Introducing some trivia about grating.

In this document, we provide a detailed introduction using images regarding the presence or absence of anti-slip processing and the pitch (the gaps in a grid pattern). 【Contents】 ■ Regarding the presence or absence of anti-slip processing: Plain type, Non-slip type ■ Regarding the pitch (the gaps in a grid pattern): Coarse, Intermediate, Fine *For more details, please download the PDF or feel free to contact us.

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Frequently Used Words: [Grating Trivia]

The load conditions for U-shaped gutters (with end angles) are all calculated in the direction of the "side ditch"!

We have compiled common phrases and words that customers often mention or would like to confirm when selecting products. 【Contents】 ■ U-shaped channel type and cross-drainage/side-drainage type ■ Difference between "side-drain" and "cross-drain" ■ Load conditions *For more details, please download the PDF or feel free to contact us.

  • Grating

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Steel striped steel plate gutter cover 'OUP'

Easy to install just by placing it. Comes with anti-shift components that match the groove width. Prevents the falling of debris and leaves, reducing the burden of cleaning.

The steel striped steel plate gutter cover "OUP" is a product designed for concrete U-shaped gutters. It is lightweight and easy to handle, allowing for simple installation by just placing it down. It has no holes, preventing the fall and intrusion of debris and leaves, which reduces the effort required for cleaning. Additionally, the back side is equipped with anti-shift components welded to match the width of the gutter, preventing shifting or detachment after installation. 【Features】 ■ Custom orders available ■ Odor prevention effect ■ Easy for toddlers and people wearing high heels to walk on ■ Products for drainage pits are also available *For more details, please refer to the materials. Feel free to contact us with any inquiries.

  • Inspection hatches, manhole covers, and ditch covers

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[Design consultations available] Striped steel plate with cat paw print holes

We can create it in your preferred design! We accept requests for lid size, foot position, and more.

The "Footprint Hole Striped Steel Plate" is a product that can be installed in various locations such as gardens and parking lots of single-family homes, in front of store entrances, and in dog runs. To be used as a trench cover, it often comes with anti-shift components on the back. It can also be installed in the catch basin under the rain gutter. The footprint holes effectively serve a drainage function as well. 【Installation Examples】 ■ Installed in a garden catch basin - Suggested hole positions for the idea of "making it look like a cat walked and left footprints." ■ Stores that offer embroidery classes and sell embroidery works - A design where footprints lead towards the entrance. *For more details, please refer to the PDF document or feel free to contact us.

  • Gutters and U-shaped gutters

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Forklift Damage Prevention Grating "OKA"

For those troubled by damage during forklift passage! Durable striped steel plate-covered U-shaped gutter grating. Easy for carts and people to pass through, while also ensuring drainage functionality.

"OKA" is a product designed to enhance durability by welding steel plates to the top of the grating, preventing damage from the passage of forklifts and other vehicles, and accommodating long-term use. It is also easy for carts and pedestrians to pass through, and it minimizes the entry of leaves and debris into the drainage ditch. Additionally, it features 5mm gaps on both sides to ensure drainage functionality. Custom options are available, such as widening the gaps to improve water drainage. 【Features】 ■ Hot-dip galvanized finish ■ Contributes to aesthetic improvement ■ Custom products in irregular or special sizes can also be manufactured ■ Diagonal cutting processing is available separately ■ Creation and submission of mill sheets and shipping certificates are also possible *Please refer to the accompanying materials. Feel free to contact us with any inquiries.

  • Grating

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Economy type stainless steel grating with a main material thickness of 3mm.

By reducing the main material from 4mm to 3mm, we achieve weight reduction and cost savings! This stainless steel grating is suitable for installation in light load conditions such as kitchens.

Okooka Manufacturing Co., Ltd. handles stainless steel grating for crosswalks, gutters, and catch basins. We offer four types of pitch: P22(S19), P15(S12), P12.5(S9.5), and P11(S8), with various shapes available. Please consider these for installation in light load conditions such as kitchens. 【Other Popular Stainless Steel Grating Products】 *Please check alongside the comprehensive catalog. ◆ Crosswalk/Gutter [Standard Type]: OSG3 (p21-22) ◆ Crosswalk/Gutter [Non-Slip Type]: OSG3-NS (p27-28) ◆ Bolt-Fixed Crosswalk/Gutter [Standard Type]: OSGT3 (p35-36) ◆ Bolt-Fixed Crosswalk/Gutter [Non-Slip Type]: OSGT3-NS (p41-42) ◆ Catch Basin [Standard Type]: OSF3 (p47-48) ◆ Catch Basin [Non-Slip Type]: OSF3-NS (p53-54) ◆ U-Channel [Standard Type]: OSU3 (p65-66) ◆ U-Channel [Non-Slip Type]: OSU3-NS (p71-72) *For more details, please view the [PDF Download] for the [Brochure] and [Comprehensive Catalog], or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Stainless steel U-shaped gutter frame with fittings "OSL1A-U"

Just place it on and secure it on top of the concrete U-shaped ditch! This reduces the number of steps and allows for shorter delivery times.

The "OSL1A-U" is a receiving frame with easy-to-install U-shaped groove fittings. Simply place the receiving frame with fittings on top of the concrete U-shaped groove and tighten the bolts on both sides to secure it. No welding is required, which reduces the number of work processes. It can also accommodate bolt-fixed types and colored pavement applications, and the main body (cover) can be made of steel. 【Features】 ■ Easy installation ■ Reduced processes ■ Possible shortening of delivery time ■ No welding required *For more details, please refer to the PDF document or feel free to contact us.

  • Casting and metal decoration

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Steel striped steel plate gutter cover [Compatible with concrete secondary product U-shaped gutters]

Easy installation just by placing it! We solve your problems with leaves, debris, and odors falling into the groove using striped steel plates. [Custom orders available, including cat paw groove covers.]

We offer a trench cover made of patterned steel plate, called "Patterned Steel Plate Trench Cover." This product addresses issues such as "leaves and garbage falling into the trench, and unpleasant odors." In addition, we have several aesthetically pleasing and odor-resistant patterned steel products available. Custom-made patterned steel items can also be produced. Please consult us for more information. 【Are you facing these trench issues?】 ■ Leaves and garbage falling in ■ Visibility into the trench ■ Concern about odors... wanting to cover it, etc. *For more details, please refer to the PDF materials or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Shapes and Specifications of Stainless Steel Types That You Can't Ask About Now【Grating Trivia】

Introducing stainless steel grating by type! Please choose according to your purpose and application!

In the grating trivia, we introduce the differences in specifications of stainless steel types so that you can choose according to your purpose and use, including specifications, non-slip options, and pitch. We summarize the characteristics of general stainless steel grating, as well as the shapes and pitch specifications of grating by type. [Contents] ■ General specifications of stainless steel grating - Plain type - Non-slip type ■ Grating shapes and pitch - For drainage ditches - For U-shaped ditches *For more details, please refer to the PDF document or feel free to contact us.

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Anti-slip processing? Pitch? Specifications and types【Trivia about grating】

Even grates that look the same at first glance have different uses and types! By knowing this before installation, you can choose a safe and cost-effective grate.

It can be surprisingly dangerous on grating surfaces, as you might slip or have wheels or high heels get stuck in the gaps. Choose ones with anti-slip features and a pitch suitable for the environment. 【Contents】 ■Presence or absence of anti-slip processing ■About pitch *For more details, please refer to "Trivia: About Specifications" available for PDF download.

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What is the difference in the method of construction? Differences between the frame structure and the pressure-welded structure [Grating Trivia]

The biggest advantage of the "structured form" is that it has fewer dimensional tolerances!

There are two methods for manufacturing grating. Each has its own characteristics, but both perform thorough strength calculations, so there is no difference in strength. 【Advantages of the Assembly Type】 ■ Short delivery time ■ Uniform quality ■ Custom products available ■ Effective use of resources *For more details, please refer to "Trivia: Differences Between Assembly Type and Pressure Welding Type" available for PDF download.

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What changes with the material? Main materials, characteristics, and uses【Grating Trivia】

Explanation of the differences in materials used for grating! The main materials are two types: stainless steel and steel.

By understanding the characteristics of materials, it is possible to choose the appropriate grating for that location. To help you select based on applications such as indoor, outdoor, chemical resistance, and aesthetics, we have summarized the differences in materials in a brief guide. [Contents] Stainless steel, steel, resin, FRP, cast iron *For more details, please refer to "Knowledge Nuggets: About Materials" available for PDF download.

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"Grating (Drain Cover) Trivia" *Free materials available!

You can understand the basics of grating, such as the differences in materials, the differences between structural and pressure-welded types, specifications, and types! It is also packed with useful information such as selection points.

Grating (drain cover) trivia provides technical information that helps understand the basics of grating, including material types, differences between assembled and welded types, specifications, and varieties! It's perfect for those who have never ordered grating before and are considering custom selections next! 【Contents】 ■ About materials (SUS, steel, resin, FRP, cast iron and their characteristics/usage locations) ■ Manufacturing methods: Differences between "assembled type" and "welded type" ■ About specifications and types (plain type / non-slip type, pitch) * The document is available for free viewing via PDF download. * When making inquiries, mentioning "I saw the trivia collection" will facilitate the process.

  • Grating
  • Store construction
  • Other earthworks, foundation works, and exterior floors

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T-bar style entrance mat

Custom size production available! Introducing stainless steel mats made with forming T-shaped materials as the main component.

The "T-bar type entrance mat" is an entrance mat that uses forming T-shaped materials as the main component. We offer a lineup including the standard type "OSM-F series," the knurled type "OSM-FNS series," and the embossed type "OSM-FEV series." Additionally, we also have a non-slip type with anti-slip processing available. The gaps in the main component come in two sizes: 10mm and 7mm. Custom sizes can be made upon request. 【Features】 ■ Stainless steel mat ■ Two gap sizes for the main component: 10mm and 7mm ■ Custom sizes available upon request ■ Frame available in two options *For more details, please refer to the PDF materials or feel free to contact us.

  • Entryway furniture
  • others

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OK Grating (Okuoka Manufacturing) New Product Catalog

Introducing convenient 17mm gap intermediate pitch grating, simple stairs, ramps, and more!

This catalog features new products handled by Okuoka Seisakusho, which designs, manufactures, and sells architectural materials and fixtures. We introduce products such as the "Intermediate Pitch Grating," which achieves a convenient gap of 17mm that is neither too narrow nor too wide, as well as simple stairs that support ascending and descending various slopes, and ramps that safely eliminate level differences. [Featured Products (Partial)] ■ Intermediate Pitch Grating ■ Lightweight Grating ■ Multi-purpose Landscape Drain Covers ■ Noise and Bounce Prevention Connecting Grating ■ Simple Stairs *For more details, please refer to the PDF document or feel free to contact us.

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Steel U-shaped drain adjustable grating "SEAGULL Series"

Can be installed in grooves with ambiguous widths! Solve your problems with flexible grating for groove widths!

The "SEAGULL Series" is a variable grating for steel U-shaped gutters, equipped with adjusters, that can accommodate ambiguous groove widths. It features a wider end angle than conventional standard products, and is designed with an intermediate opening type (gap of 17mm) that makes it difficult for wheels of strollers, wheelchairs, and carts to get stuck. The main materials used have anti-slip processing. 【Features】 ■ Made in Japan ■ Wider end angle than conventional standard products ■ Equipped with adjusters ■ Adjustable orientation and position of the fittings to match the width and shape of the groove ■ Can accommodate groove widths that were previously only available as custom products *For more details, please refer to the PDF materials or feel free to contact us.

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Wood grain patterned grating "REA・REL Series (Reverse Type)"

A design that reproduces the texture of natural wood! There are two colors: natural and light!

The "REA・REL Series (Reverse Type)" is a wood-grain grating made from water-resistant PVC material. It is easy to install and clean, and its durability makes it a recommended substitute for "suno-ko" (a type of wooden flooring). It blends seamlessly into any setting, whether in wet areas or in traditional or modern styles, providing a space of comfort and healing. The design replicates the texture of natural wood, and it is available in two colors: Natural and Light. 【Features】 ■ Made from water-resistant PVC material ■ Easy to install and clean ■ Excellent durability ■ Provides a space of comfort and healing ■ Design that replicates the texture of natural wood *For more details, please refer to the PDF document or feel free to contact us.

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[New Product] Steel Grating "OKYU Series"

Excellent cost performance! Introducing lightweight grating!

The "OKYU Series" is an economy-type steel grating that uses FB3×16 as its main material. It is ultra-lightweight (compared to our products), which reduces the burden during cleaning and movement, and it also offers excellent cost performance. The applicable load is for sidewalks. 【Features】 ■ Economy standard type for sidewalks ■ Ultra-lightweight, reducing the burden during cleaning and movement ■ Excellent cost performance ■ Applicable load: for sidewalks *For more details, please refer to the PDF document or feel free to contact us.

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[New Product] "Intermediate Pitch Grating"

Not too narrow, not too wide, a convenient 17mm gap! A grating structure that fits the right material in the right place.

The "Intermediate Pitch Grating" is an energy-saving and environmentally friendly grating. With a 17mm spacing that is neither too narrow nor too wide, it offers various benefits. There is no worry about wheels getting stuck in the gaps. The choice of main material pitch is also an attractive feature. A wide range of pitch sizes can be selected and manufactured according to customer preferences. 【Features】 ■ More affordable and lightweight than fine specifications ■ Safer and more secure than standard specifications ■ Structural reinforcement with original specifications *For more details, please refer to the PDF document or feel free to contact us.

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Screen Orifice Plate

Essential for water storage tanks! Integrated screen and orifice plate also available in the lineup!

The "Screen Orifice Plate" is a product handled by Okuoka Manufacturing, which designs, manufactures, and sells architectural materials and fixtures. It can be used in water storage chambers and adjustment ponds, with the screen serving as a debris barrier for leaves and other waste, while the orifice plate can be used to adjust drainage flow. In addition to standalone options, there is also a "Screen Orifice Plate Integrated Type" available. It comes in non-opening, front-opening, and top-opening styles. 【Features】 ■ Essential for water storage tanks ■ Usable in water storage chambers and adjustment ponds *For more details, please refer to the PDF document or feel free to contact us.

  • screen

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[New Product] Steel Checker Plate Manhole Cover 'OMH Series'

This is it for the circular hole! A striped steel plate cover for manholes that can be adjusted in size with an adjuster.

The "OMH Series" is a round manhole cover made of patterned steel plate. It comes with an adjuster, allowing it to be used according to the opening dimensions. The surface treatment features a hot-dip galvanized finish that offers excellent rust prevention. Additionally, custom-made products are also available (please provide the hole dimensions and load capacity). 【Features】 ■ Processed product ■ Made of steel ■ Adjustable size with an adjuster ■ Custom-made products available ■ Applicable load: T-2, for sidewalks *For more details, please refer to the PDF document or feel free to contact us.

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[New Product] Slope 'OKSLOPE-01K'

Eliminate steps safely and securely! Custom sizes and stainless steel or aluminum options are also available.

The "OKSLOPE-01K" is a ramp that safely and securely eliminates level differences. Custom sizes and stainless steel or aluminum versions are also available. It is suitable for wheelchairs, hand trucks, strollers, bicycles, and scooters. 【Features】 ■ Custom products ■ Custom sizes and stainless steel or aluminum versions are also available ■ Safely and securely eliminates level differences *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables

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[New Product] Steel Simple Staircase 'KIZUNA'

Assembly and installation are easy! A steel simple staircase that supports going up and down any slope.

"KIZUNA" is a steel-made simple staircase that can be used on various slopes such as hills, rice fields, farms, and construction sites. Assembly and installation are easy, providing safe ascent and descent. Additionally, the surface is made of slip-resistant processed steel, and custom manufacturing is also available. 【Features】 ■ Easy assembly with 2 steps per set ■ Uses slip-resistant materials ■ Usable slope gradient: 30 degrees to 40 degrees ■ Custom manufacturing is also available *For more details, please refer to the PDF document or feel free to contact us.

  • Outdoor stairs

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[New Product] Grating with Connection Function for U-shaped Ditches - RC-OKU Series

No need for various specialized connecting fittings! Noise and bounce prevention connecting grating.

The "RC-OKU Series" is a grating with a connection function for U-shaped gutters. Since it does not require a variety of specialized connection fittings, work efficiency is significantly improved. It prevents the risk of lifting by connecting the gratings on the left and right. Additionally, because they are interconnected, there is no lifting and reduced noise, and it can be connected to all types of gratings, making it economical. 【Features】 ■ No connection fittings required ■ Theft prevention ■ Fall prevention ■ Lifting prevention ■ Noise reduction ■ Economical and suitable for the right materials in the right places *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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[New Product] Multipurpose Landscape Drain Cover "Kabako"

Add color to the manhole cover! It demonstrates excellent effects in both aesthetics and functionality!

"Kabako" is a versatile gutter cover developed with a lowered eye level. By lowering the gutter lid by one step, it allows for the placement of paving stones and planters, achieving integration with the garden. The garden's landscape is greatly enhanced, and the drainage is excellent. Even during heavy rainfall, it won't shift or flow away, providing peace of mind. 【Features】 ■ A versatile gutter cover developed with a lowered eye level ■ Greatly enhances the garden's landscape and offers excellent drainage ■ Provides peace of mind as it won't shift or flow away even during heavy rainfall ■ When installed in the garden: space is effectively utilized, and the installation looks neat ■ When installed in the exterior: improves the landscape without compromising the functionality of the exterior *For more details, please refer to the PDF materials or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Cast Iron Catch Basin Cover "OMF Series"

Introducing cast iron square manhole covers that are quieter and more usable compared to steel plates!

The "OMF Series" is a square cast iron manhole cover handled by Okuoka Manufacturing Co., Ltd., which designs, manufactures, and sells building materials and fixtures. It produces less noise compared to steel plate covers. The frame is made of SUS304, and we recommend the "OSL1A type." 【Features】 ■ Square cast iron manhole cover ■ Produces less noise compared to steel plate covers ■ Frame is made of SUS304, "OSL1A type" is recommended *For more details, please refer to the PDF document or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Cast iron side ditch cover "OMT-K/OMT-T series"

Can be used as a pit cover for the kitchen! Two types of cast iron drainage covers: grid type and upright type.

The "OMT-K and OMT-T series" are cast iron grates for side ditches handled by Okuoka Seisakusho, which designs, manufactures, and sells building materials and fixtures. The "OMT-K series" features a grid-shaped opening, while the "OMT-T series" has a vertical opening shape. Compared to steel plate products, they produce less rattling noise and can be used as pit covers in kitchens. 【Features】 ■ Grid-shaped opening (OMT-K series) ■ Vertical opening shape (OMT-T series) ■ Less rattling noise compared to steel plate products ■ Usable as pit covers in kitchens ■ The receiving frame is made of SUS304, and the "OSL1A type" is recommended *For more details, please refer to the PDF document or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Cast Iron Manhole Cover "OM・OMB Series"

Introducing a general-purpose cast iron manhole cover!

The "OM・OMB Series" is a cast iron manhole cover handled by Okuoka Seisakusho, which designs, manufactures, and sells building materials and fixtures. There are two types of manhole covers: the standard manhole cover "OM Series" and the medium-duty manhole cover "OMB Series." These are general-purpose types suitable for pedestrian load. 【Features】 ■ General-purpose type ■ Made of cast iron ■ Applicable load: for sidewalks ■ OM Series: OM product standards (standard manhole cover) ■ OMB Series: OMB product standards (medium-duty manhole cover) *For more details, please refer to the PDF materials or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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FRP grating floor material and fence material 'HG-40・25 series'

Excellent corrosion resistance, weather resistance, and insulation properties, lightweight and high strength! Suitable for flooring materials and fencing materials in buildings, etc.

The "HG-40・25 Series" is an FRP grating flooring and fencing material handled by Okuoka Manufacturing, which specializes in the design, production, and sales of building materials and fixtures. It is lightweight, high-strength, and excels in corrosion resistance, weather resistance, and electrical insulation. It can be used as flooring or fencing material in buildings and other structures. We offer general types, flame-retardant types, and corrosion-resistant types. 【Features】 ■ Corrosion Resistance: Excellent resistance to acids, alkalis, and salts ■ Weather Resistance: Suitable for long-term outdoor use ■ Electrical Insulation: High electrical insulation, eliminating concerns about radio interference ■ Lightweight: Much lighter than steel and aluminum, making it easy to handle ■ High Strength: Specific strength is 1.5 to 3 times that of steel, comparable to general metals *For more details, please refer to the PDF materials or feel free to contact us.

  • Grating

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Pit cover frame

Introducing pit hardware such as steel frames with cushion rubber!

The "Pit Cover Frame" is a product handled by Okuoka Manufacturing, which designs, manufactures, and sells building materials and fixtures. We offer a lineup that includes the steel frame with cushion rubber "OKL-P" and the stainless steel economy type with joints "OSL3A," among others. 【Product Lineup】 ■ Steel frame (with cushion rubber) "OKL-P" ■ Stainless steel angle frame (with cushion rubber) "OSL1A-28P" ■ Stainless steel forming frame (with cushion rubber) "OFSL-P" ■ Stainless steel forming frame (with cushion rubber) "OFSL-G15" ■ Stainless steel economy type with joints "OSL3A" ■ Stainless steel standard type with joints "OSL3B" *For more details, please refer to the PDF document or feel free to contact us.

  • Casting and metal decoration

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Drainage pit cover

Introducing pit hardware such as stainless steel drainage pit covers for side ditches and catch basins!

The "drainage pit cover" is a product handled by Okuoka Manufacturing, which specializes in the design, production, and sale of building materials and fixtures. We offer a lineup that includes the flat rectangular SUS drainage pit cover "OSPA-3TS," made from 3mm material, as well as the flat rectangular SUS drainage pit cover "OSPA-5," which is made from 5mm material for increased strength. 【Lineup (excerpt)】 ■ Stainless steel drainage pit cover (hairline finish with ceramic thermal spraying) "OSPA-3TS" ■ Stainless steel drainage pit cover (etched) "OSPH-3" ■ Stainless steel drainage pit cover (hairline finish/non-slip treatment) "OSPA-3" ■ Stainless steel drainage pit cover (hairline finish) "OSPA-5" ■ Stainless steel drainage pit cover (with anti-slip) "OSPF-3(5)" *For more details, please refer to the PDF document or feel free to contact us.

  • Casting and metal decoration

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Wiring pit cover

Introducing pit hardware such as stainless steel wiring pit covers for P tiles and porcelain tiles!

The "Wiring Pit Cover" is a product handled by Okuoka Manufacturing, which designs, manufactures, and sells building materials and fixtures. We offer a lineup that includes the stainless steel wiring pit cover "OPC-S," which can accommodate finish materials with a thickness of 3mm or less, such as P tiles and PVC long sheets, as well as the steel pit cover "OKSP-3(5)," made from electroplated checkered steel plate. 【Product Lineup】 ■ Stainless Steel Wiring Pit Cover (Stainless Steel Joint) for P Tiles "OPC-S" ■ Stainless Steel Wiring Pit Cover (Stainless Steel Joint) for Porcelain Tiles "OPM-S" ■ Steel Wiring and Piping Pit Cover (Checkered Steel Plate, Electroplated Finish) "OKSP-3(5)" ■ Steel Wiring and Piping Pit Cover (Checkered Steel Plate, Galvanized Finish) "OKCP-5(6)" *For more details, please refer to the PDF materials or feel free to contact us.

  • Casting and metal decoration

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Resin Grating (Slatted Type) 'RRM-F'

Easily cut with a cutter or similar tool! A slatted type that takes safety and flexibility into consideration.

Okooka Manufacturing Co., Ltd. offers resin grating (slatted type) that takes safety and flexibility into consideration. It is easy to store and move by rolling it up. Additionally, the joint parts are made of soft material, allowing for easy cutting with a cutter or similar tool. Since it is patchwork-style, logos and other designs are acceptable. However, please consult separately regarding delivery times. 【Features】 ■ Easy to store and move by rolling it up ■ There is ample space in each gap, making it easy to shorten ■ The joint parts are made of soft material, allowing for easy cutting with a cutter or similar tool ■ Patchwork-style allows for logos and other designs (however, please consult separately regarding delivery times) ■ Available in 7 colors *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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Resin Grating (Reverse Type) "RRL Series"

Colors are available in 7 options! Suitable for environments such as nursing homes where wheelchairs and carts are used, featuring a reverse pattern type.

Okooka Manufacturing Co., Ltd. offers resin grating (reverse type) with excellent drainage. Colors are available in 7 options. It is suitable for environments using wheelchairs and carts, such as nursing facilities, and we can also produce entrance mats. The subtle texture on the surface provides a pleasant stimulation to the soles of the feet (pressure points). 【Features】 ■ Excellent drainage ■ Maximum length of 1000mm ■ Entrance mats can also be produced (rubber at the center of the bush) ■ Colors are available in 7 options ■ Ideal for environments using wheelchairs and carts, such as nursing facilities *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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Resin Grating (Standard Type) 'RRA・RRT Series'

Introducing the standard type with a variety of sizes and the T type that fits both the floor and feet.

Okooka Manufacturing Co., Ltd. offers easy-to-repair resin grating (standard type) that allows for simple part replacement. We provide the "RRA series," which comes in a wide variety of sizes, and the "RRT series," which can completely shut out water from poolside. Both series are available in seven colors, and the subtle texture on the surface provides a pleasant stimulation to the soles of the feet (pressure points). 【Features】 <RRA Series> ■ Minimum radius is R300 ■ Curved shapes can be accommodated by combining components <RRT Series> ■ Minimum radius is R500 ■ Children's fingers cannot fit through the gaps *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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Selection possible just by checking! For selecting the cover of that groove.

Leave the selection of grating to the professionals! Just choose the appearance and size!

Are there any of you who don't know which grating fits? A simple checklist that only requires you to choose the appearance and size. 【Example Patterns (partial listing)】 ■ Shape of the cover/grating ■ Plain specification or non-slip specification ■ Shape of the groove ■ Material, etc. *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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Don't give up! The lid of the ditch.

Are you having issues with commercial products not fitting, concerns about the smell from the grooves, or inconvenient steps? We can solve these problems!

Are you having trouble with drainage covers, such as store-bought ones not fitting, unpleasant odors from the drains, inconvenient steps, or other issues? Okooka Manufacturing Co., Ltd. will solve your drainage cover problems. 【Common Issues】 ■ Store-bought ones do not fit... ■ Unpleasant odors from the drains... ■ Inconvenient steps... ■ Complex drains that cannot be covered... ■ The cover is loose... ■ Want to replace concrete covers... ■ Slippery and dangerous... ■ Cannot walk in high heels... and more *For more details, please refer to the PDF materials or feel free to contact us.

  • Grating

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Stainless Steel Grating for Manhole Cover

Lightweight, electropolished, and confident in strength! Introducing various types of stainless steel grating.

Okooka Manufacturing Co., Ltd. handles stainless steel grating for crosswalks, gutters, and catch basins. Our greatest confidence in stainless steel grating lies in the variety of main material pitches. With a finely tuned pitch range from P30 to P10 across eight levels, we have made it possible for various applications. (FB type) The material composition also adopts an integrated method using FB for auxiliary materials in addition to the main material FB, ensuring a reliable specification in terms of strength compared to products using round bars for auxiliary materials. 【Lineup (excerpt)】 ■ For crosswalks and gutters ■ Bolt-fixed type for crosswalks and gutters ■ For catch basins ■ T-bar type for sidewalks ■ For U-shaped gutters *For more details, please refer to the PDF document or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers
  • Grating
  • Manhole body

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【Manhole Cover】Composite Steel Grating

Short delivery time available! Introducing a manufacturing method that incorporates and joins main materials and auxiliary materials at right angles.

Okooka Manufacturing Co., Ltd. handles modular steel grating for variable U-shaped ditches and multipurpose landscaping. We can manufacture according to customer needs, including changes in body width and dimensions, main material pitch, four-sided taper, and step ditches. We adopt a Kanban system that allows us to prepare only the necessary materials in the required amounts, ensuring excellent price performance. If you need urgent assistance due to sudden additional work or order omissions, please consult us. 【Features】 ■ Short delivery times ■ Uniform quality ■ Custom products available ■ Effective resource utilization *For more details, please refer to the PDF materials or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Manhole cover, pit hardware

Introducing stainless steel drainage pit covers for side ditches, catch basins, U-shaped ditches, and more!

Okooka Manufacturing Co., Ltd. handles pit hardware such as wiring pit covers and drainage pit covers. We offer a range of products including the wiring pit cover "OPC-S," which allows for the attachment of finish materials with a thickness of 3mm or less, such as P tiles and vinyl sheets, as well as stainless steel drainage pit covers for side ditches and catch basins, including "OSPA-3TS" and "OSPB-3TS." We also provide four types of receiving frames for pit covers made of steel and stainless steel. 【Product Lineup】 ■ Wiring pit covers: for P tiles and porcelain tiles ■ Wiring and piping pit covers ■ Drainage pit covers *For more details, please refer to the PDF document or feel free to contact us.

  • Inspection hatches, manhole covers, and ditch covers

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Okooka Manufacturing Co., Ltd. OK Grating General Catalog

[Total 263 pages] Introducing grating products that can be selected according to your needs, including resin, stainless steel, FRP, variable types, and U-shaped channel options!

At Okooka Manufacturing, we design, manufacture, and sell construction materials and fixtures, including grating. Our comprehensive catalog, "OK Grating Comprehensive Catalog," features a wide range of products, including "stainless steel grating," which is suitable for indoor use in kitchens, bathrooms, etc., as well as "T-bar entrance mats" and "pit hardware," showcasing a variety of materials and shapes. 【Introduction to Catalog Contents (Selected Major Products)】 ■ For U-shaped gutters Stainless steel: p61–p73 | Steel: p135–p159 ■ For side gutters Stainless steel: p17–p42 | Steel: p161–p178 ■ For pits (with four-sided flanges) Stainless steel: p74 | Steel: p187–p192 ■ Steel plate covers (for drainage pits, etc.) Stainless steel: p91–p109 | Steel: p158, P93–94 *For more details, please refer to the PDF document or feel free to contact us.

  • Grating

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Stainless steel grating

Lightweight and confident in strength! You can choose according to your needs.

The "stainless steel grating" is the ideal grating for indoor use in kitchens, bathrooms, and other areas. This product is made to order. Our unique order and manufacturing system allows us to achieve delivery times that were previously impossible, meeting our customers' needs. We offer a wide range of products, including "cross-drain and side-drain types," "bolt-fixed cross-drain and side-drain types," and "catch basin types." 【Features】 ■ Confidence in fine mesh ■ Achieved lightweight design ■ Short delivery times ■ Excellent electropolishing ■ High strength *For more details, please refer to the PDF materials or feel free to contact us.

  • Grating

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T-bar style entrance mat

T-bar entrance mat using forming T-shaped materials and cold drawn T-shaped materials.

The "T-Bar Entrance Mat" is an entrance mat handled by Okuoka Seisakusho, which specializes in the design, manufacturing, and sales of building materials and fixtures. We offer two types: one using forming T-shaped materials as the main component and another using cold-drawn T-shaped materials. 【Features】 <Forming T-shaped Material, Width 8mm> ■ Uses forming T-shaped material as the main component ■ Two types of gaps in the main component: 10mm and 7mm, with heights H = 15mm and 20mm ■ Custom sizes available upon request ■ Standard type, knurled type, and embossed type are available *For more details, please refer to the PDF document or feel free to contact us.

  • Entryway furniture

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