lid(500) - List of Manufacturers, Suppliers, Companies and Products

Last Updated： Aggregation Period:Aug 13, 2025～Sep 09, 2025
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lid Product List

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Edge Warning Block Lid "Hashikkokun"

Edge Warning Block Lid "Hashikkokun"

The surface color can also be selected in yellow. It has good visibility and is easy for visually impaired individuals to understand, making it effective.

"Hashikkokun" is a cover that combines a drainage ditch cover and tactile paving blocks for visually impaired individuals, serving as a warning for the edges of roads. By combining the "cover" of a drainage ditch, which is typically installed on the road (often at the edge of the road), with "tactile paving blocks" (arranged for platform edge warning), it becomes possible to alert and guide individuals to hazardous areas on the road. Additionally, since only the drainage ditch cover needs to be replaced, it allows for low-cost and prompt responses. Please feel free to contact us if you have any inquiries. [Case Examples] 1. Utility poles on the road pose a risk of collision for visually impaired individuals, but they can navigate around the poles. 2. Even if a wheelchair unintentionally rolls off the road due to drainage gradients into fields or similar areas, it can prevent falling. *For more details, please download the PDF or feel free to contact us.

  • Paving of sidewalks, roads, parking lots and stadiums

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Iron cover for utility duct.

Iron cover for utility duct.

Compatible with the sizes of C.C. BOX manhole covers and joint trench manhole covers throughout Japan.

Nijigi has been involved in the design and manufacturing of iron covers for underground electrical wiring since the early days of undergrounding electrical lines with CAB covers. Nijigi's iron covers are designed to ensure safe and smooth road traffic and to enhance the road's landscape in line with the purpose of installing C.C. Boxes, while being as compact and cost-effective as possible, maximizing functionality.

  • Road facilities
  • Road signs and road accessories
  • Secondary paving products

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Cast iron grates around buildings such as mansions, apartments, and collective housing.

Cast iron grates around buildings such as mansions, apartments, and collective housing.

Essential item for the surroundings of apartment buildings and other multi-unit residences! The standard product 'cast iron grating cover' made from the same material as manholes!

We would like to introduce the "Cast Iron Grate" (Cast Iron Grating) handled by Okagreat Co., Ltd. An essential item for apartment complexes and buildings like condominiums! It collects and drains rainwater on the premises. Featuring a chic, subdued color and a matte finish with "Rust-Resistant Black Paint Coating." The photo shows a standard view. It seems that in new properties from major manufacturers of apartment buildings, it is almost always included in the design plans, and it is commonly installed in nearby locations. It is utilized in various scenes, such as on-site pouring and repurposing for concrete secondary products! The material is the same as that used for manholes, with both the grate and the frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron." 〇SHASE-S209 Product Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Drainage and ventilation equipment

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Gazelle Slit "GSD (CGT) Circular Water Channel Type"

Gazelle Slit "GSD (CGT) Circular Water Channel Type"

The material of the slotted lid is cast iron (FCD500) with a slit gap of 6 millimeters! For concrete secondary products "circular water channels." Can be arranged for various applications.

The material of the slit cover is cast iron (FCD500) with a slit gap of 6mm! We would like to introduce the features of our "Gazelle Slit GSD" (for circular drainage channels). The slit cover is made of cast iron (FCD500), and the frame is finished with galvanized steel. It is designed for concrete precast products "circular drainage channels." The cast iron (FCD500) slit cover is considerate of the landscape. By simply placing the frame on top of the concrete precast circular drainage channel and securing it with anchor bolts, the construction time can be significantly reduced. After installation, the slit lines blend into the calm landscape, enhancing the paved surface. Additionally, the cover uses a rain gap type, with a gap of 6mm, allowing for comfortable passage for wheelchairs, strollers, and high heels. It is suitable for exteriors, entrance areas, buildings, apartments, commercial facilities, and temples and shrines. 【Features】 ■ After installation, the drainage slit lines blend into the calm landscape, enhancing the paved surface. ■ Load capacity is compatible with T-14, T-2, and pedestrian use. ■ Simply place the frame on top of the circular drainage channel and secure it with anchor bolts. ■ The slit gap of the cover is 6mm. *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 grates around buildings such as mansions, apartments, and collective housing.

Cast iron grates around buildings such as mansions, apartments, and collective housing.

Essential items for the surroundings of collective housing such as mansions and apartments! The classic product 'cast iron grating cover' made of the same material as manholes!

We would like to introduce the "Cast Iron Grate" (Cast Iron Grating) handled by Okagreat Co., Ltd. An essential item for apartment buildings, condominiums, and other multi-family residences! It collects and drains rainwater on the premises. Featuring a chic, subdued color and a matte finish with "Rust-Resistant Black Paint." The photo shows a standard view. It seems that in new properties from major manufacturers of multi-family housing, it is almost always included in the design plans, and it is commonly installed in familiar places. It is utilized in various scenes, such as site-cast and repurposed for concrete precast products! The material is the same as that used for manholes, with both the grate and the frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron"! 〇SHASE-S209 Product Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Other commercial buildings and service facilities

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Cast iron grates around buildings such as mansions, apartments, and collective housing.

Cast iron grates around buildings such as mansions, apartments, and collective housing.

Essential items for the surroundings of apartment buildings and other multi-unit residences! The standard product, 'cast iron grating cover,' made from the same material as manholes!

We would like to introduce the "Cast Iron Grate Cover" (cast iron grid) handled by Okagreat Co., Ltd. An essential item for apartment buildings and condominiums! It collects and drains rainwater on the premises. Featuring a chic, subdued color and a matte finish with "Rust-Resistant Black Paint Coating." The photo shows a standard view. It seems that in new properties from major manufacturers of multi-family housing, it is almost always included in the design plans, and it is commonly installed in familiar places. It is utilized in various scenes, such as site-cast and repurposed for concrete precast products! The material is the same as that used for manholes, with both the grate cover and frame made of "FC200 cast iron" or "FCD500 ductile iron"! 〇SHASE-S209 Product Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Welfare and medical equipment

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"Cast iron grating cover" around apartments, condominiums, and collective housing, etc.

"Cast iron grating cover" around apartments, condominiums, and collective housing, etc.

Essential items around mansions, apartments, and collective housing! A standard product made of cast iron grid mesh, the 'cast iron grid cover' with fine mesh, made from the same material as manholes!

We would like to introduce the "Cast Iron Grate Cover" (Cast Iron Grate Mesh) handled by Okagreat Co., Ltd. An essential item for apartment buildings and condominiums! It collects and drains rainwater on the premises. Featuring a chic, subdued color and a matte finish with "Rust-Resistant Black Paint." The photo shows a fine mesh. It is almost always included in the design plans for new properties from major manufacturers of multi-family housing, and is commonly installed in nearby locations. It is versatile and used in various scenarios, including site-cast and repurposing for concrete precast products! The material is the same as that used for manholes, with both the grate cover and frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron"! 〇SHASE-S209 is compatible with the standard frame. Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Drainage and ventilation equipment

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Cast iron grating cover details around condominiums, apartments, and collective housing.

Cast iron grating cover details around condominiums, apartments, and collective housing.

Essential items around mansions, apartments, and collective housing! A standard product made of cast iron mesh, the 'cast iron grating cover' with fine mesh, made from the same material as manholes!

We would like to introduce the "Cast Iron Grate Cover" (Cast Iron Grate Mesh) handled by Okagreat Co., Ltd. An essential item for apartment buildings and condominiums! It collects and drains rainwater on the premises. Featuring a chic, subdued color and a matte finish with "Rust-Resistant Black Paint." The photo shows a fine mesh. It is almost always included in the design plans for new properties by major manufacturers of multi-family housing and is commonly installed in familiar locations. It is versatile and can be used in various scenes, including site-cast and concrete precast products! The material is the same as that used for manholes, with both the grate cover and frame made of "FC200 cast iron" or "FCD500 ductile iron." 〇 It is compatible with the standard frame of SHASE-S209. Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Welfare and medical equipment

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"Cast iron grating cover" around apartments, apartments, and collective housing, etc.

"Cast iron grating cover" around apartments, apartments, and collective housing, etc.

Essential items around mansions, apartments, and collective housing! Standard product 'Cast Iron Grate Cover' with fine mesh made of the same material as manholes!

We would like to introduce the "Cast Iron Grate Cover" (Cast Iron Grate Mesh) handled by Okagreat Co., Ltd. An essential item for apartment complexes and buildings such as condominiums! It collects and drains rainwater on the premises. It features a chic, calm color and a matte finish with "Rust-Resistant Black Paint Coating." The photo shows a fine mesh. It is almost always included in the design plans for new properties from major manufacturers of multi-family housing and is commonly installed in familiar locations. It is versatile and can be used in various scenes, such as site-cast and repurposed for concrete precast products! The material is the same as that used for manholes, with both the grate cover and frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron"! 〇SHASE-S209 is compatible with the standard frame. Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

  • Other commercial buildings and service facilities

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Wooden drainage cover

Wooden drainage cover

Lightweight, durable, and size flexible! A wooden drainage cover with the warmth and texture of natural materials.

The "Wooden Drain Cover" is a lightweight and durable wooden drain cover made by Murooka Forestry Co., Ltd., which is well-versed in local cedar wood. It solves problems such as "the steel plate covers are very noisy with clanging sounds," "I got injured when putting back the heavy cover," and "there are no covers that fit the dimensions of the drain." With appropriate anti-corrosion treatment, it can be used for 10 to 15 years. Experience the warmth and texture of natural materials. Your awareness of the environment will also change. 【Features】 ■ Lightweight ■ Durable ■ Custom sizes ■ Anti-corrosion treatment ■ Long lifespan *For more details, please refer to the catalog or feel free to contact us.

  • wood
  • Exterior and paving materials <General>

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Gazelle Slit "GSD (CGT) U-shaped Drainage Type"

Gazelle Slit "GSD (CGT) U-shaped Drainage Type"

The material of the slit cover is cast iron (FCD500) with a slit gap of 6mm! For U150, U180, U240, U300.

We would like to introduce the features of our "Gazel Slit GSD" (for U-shaped gutters). The slit cover is made of cast iron (FCD500), and the frame is finished with galvanized steel. Available for U150, U180, U240, U300, and others. The cast iron (FCD500) slit cover is designed with consideration for aesthetics. By simply placing the frame on top of the concrete U-shaped gutter and securing it with bolts, the construction time can be significantly shortened. After installation, the slit lines blend harmoniously with the surroundings, enhancing the paved surface. Additionally, the cover uses a rain gap type with a 6mm gap, allowing comfortable passage for wheelchairs, strollers, and high heels. Suitable for exteriors, entrance areas, and other buildings, apartments, commercial facilities, and the grounds of temples and shrines. 【Features】 ■ After installation, the drainage slit lines blend harmoniously with the paved surface. ■ Load capacity supports T-14, T-2, and pedestrian use. ■ Simple installation by placing the frame on the U-shaped gutter and securing it with bolts. ■ The slit gap of the cover is 6mm. *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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Cosmetic iron cover for interlocking blocks with a secure lock.

Cosmetic iron cover for interlocking blocks with a secure lock.

It is a security-enhanced manhole cover that can prevent theft and vandalism in places like parks and station squares.

The decorative iron cover with a lock is an iron cover that excels in security and safety among decorative iron covers. Here, we will introduce its usage scenarios and benefits. First, the decorative iron cover with a lock is ideal for use in public places and facilities where a large number of people may have access. For example, it may be used in parks or in front of train stations to prevent theft and vandalism. By introducing a decorative iron cover with a lock, it can prevent unauthorized opening and closing, making it safer and more secure. Furthermore, the decorative iron cover with a lock can be locked and unlocked using a dedicated key handle, which reduces the burden on the administrator. The roller slide opening and closing type decorative iron cover is easy to open and close and is excellent in terms of maintenance. "Lock Installation Procedure" [Video] https://youtu.be/UXi6T4rp2n8

  • Inspection hatches, manhole covers, and ditch covers

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Reinforced concrete special L-shaped (Tokyo Metropolitan Bureau of Construction type)

Reinforced concrete special L-shaped (Tokyo Metropolitan Bureau of Construction type)

L-shaped lid (also has three holes), edge block

Covers for U-shaped ditches 240 and 300, will be edge blocks.

  • Gutters and U-shaped gutters

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Tokyo Metropolitan Type Reinforced Concrete U-shaped Covers (Type 1 and Type 2)

Tokyo Metropolitan Type Reinforced Concrete U-shaped Covers (Type 1 and Type 2)

Tokyo Metropolitan Type Reinforced Concrete U-shaped Cover (Type 1 and Type 2)

U-shaped drain covers used in connection with roads, land, and drainage ditches.

  • Gutters and U-shaped gutters

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Grease trap lid

Grease trap lid

Choose whether to have a handle and select the material! Introducing a lid for grease traps that takes hygiene management into consideration!

The "grease trap cover" is a product designed to prevent the entry of garbage, odors, and pests from the handle. There are types without handles and cheaper types made of different materials, and the aluminum version is lightweight, making it easy to handle during work. Additionally, it contributes to improving hygiene management in accordance with HACCP. 【Features】 ■ For grease traps ■ Consideration for preventing garbage entry, odors, and pests ■ Contributes to improved hygiene management ■ Customizable with or without handles and material changes ■ Made to order *For more details, please refer to the PDF document or feel free to contact us.

  • Drainage and ventilation equipment
  • Drainage material

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