Gutters(netis) - List of Manufacturers, Suppliers, Companies and Products

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
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Gutters Product List

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Deep groove circular side ditch

Deep groove circular side ditch

Registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS" for weed prevention methods and deep groove circular ditches! Includes construction examples.

The "Deep Groove Circular Drain" enhances both beauty and functionality, and is a high-performance channel-type drainage system born from the know-how of circular drainage systems. This product is compatible with weed prevention methods. It is registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS" and the Ibaraki New Technology Information System "IT'S" for weed prevention methods. Additionally, the Deep Groove Circular Drain is also registered with "NETIS." Our key service areas include the Kanto region, such as Ibaraki Prefecture, Gunma Prefecture, Fukushima Prefecture, Tokyo, Kanagawa Prefecture, Chiba Prefecture, and Saitama Prefecture, so please feel free to contact us. 【Features】 ■ Compatible with weed prevention methods ■ NETIS Registration Number: KT-160069-VR (Weed Prevention Method) ■ NETIS Registration Number: KT-040045-T (Deep Groove Circular Drain) ■ IT'S Registration Number: A-16095 *For more details, please refer to the PDF document or feel free to contact us.

  • Gutters and U-shaped gutters

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Slit Circular Drain (Type II)

Slit Circular Drain (Type II)

Registered product of the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS" / Ibaraki New Technology Information System "IT'S"! Includes construction examples.

This is the "Slit Circular Drain (Type II)" from Yuge Concrete Industry, which handles concrete products such as agricultural products, road products, retaining walls, and soil retention products. This product is compatible with weed prevention methods. It is registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS" and the Ibaraki New Technology Information System "IT'S." Our key service areas include the Kanto region, such as Ibaraki Prefecture, Gunma Prefecture, Fukushima Prefecture, Tokyo, Kanagawa Prefecture, Chiba Prefecture, and Saitama Prefecture, so please feel free to contact us. 【Features】 ■ Compatible with weed prevention methods ■ NETIS Registration Number: KT-160069-VR ■ IT'S Registration Number: A-16095 *For more details, please refer to the PDF document or feel free to contact us.

  • Gutters and U-shaped gutters

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River Field Product Catalog

River Field Product Catalog

Many river-related products with experience registered in NETIS are listed!

This catalog features our developed products in the river field, including those registered with NETIS (the New Technology Information System provided by the Ministry of Land, Infrastructure, Transport and Tourism). We introduce products related to rivers, including "Bio Green," which is optimal for greening restoration, and "Ecoloston," a block for gentle slopes. 【Featured Products】 ■ Bio Green ■ Ecoloston ■ Tension Block ■ Belt Concrete / Foundation Concrete ■ Devan ■ Steel Material Storage ■ All Guard Panel *For more details, please refer to the PDF document or feel free to contact us.

  • River construction
  • Various blocks

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Multi-slit drainage ditch *Comprehensive catalog available for free! (Examples available)

Multi-slit drainage ditch *Comprehensive catalog available for free! (Examples available)

By simply increasing the formwork, we can achieve a variety of variations. Formwork costs are reduced, and productivity is improved! We respond to various site needs with multifunctionality.

The "Multi Slit Gutter" is a road product handled by Kitamura Concrete Industry. It does not require a hollow type like pipes or circular water channels, and by simply increasing the number of cover molds, it can offer many variations, reducing mold costs and improving productivity. Additionally, a cost-effective Type II gutter has been standardized, following the JIS design as a dedicated cross-section gutter, allowing for the construction of slit gutters at a low price. It meets various site needs with multiple functions such as free slope, drainage pavement, barrier-free compliance, prevention of cover rattling, and prevention of grating protrusion. 【Features】 ■ Achieves low cost ■ Functional to accommodate various situations ■ 7 variations compatible with T-25 vertical and horizontal cross-sections ■ Ministry of Land, Infrastructure, Transport and Tourism NETIS registration number: KK-980098 (technology with expired NETIS listing period) ■ New technology organization number by the Japan Highway Public Corporation: 200200002 *For more details, please refer to the PDF materials or feel free to contact us.

  • Gutters and U-shaped gutters

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Concrete products FX drainage ditch

Concrete products FX drainage ditch

Triple support feature further reduces noise issues at a lower cost!

The flat sides make compaction easier, eliminating shoulder drop in the pavement, and allowing for precise construction that fits perfectly with existing structures.

  • Gutters and U-shaped gutters

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Rectangular cross-section drainage channel for side ditches "Kukei waterway"

Rectangular cross-section drainage channel for side ditches "Kukei waterway"

This is a rectangular cross-section water channel for ditches that enables a reduction in the height of drainage pipes.

The "Kukei Waterway" was developed for side ditches such as box tunnels. The roads established underground are divided into the space for vehicle passage and the lower surface where road drainage side ditches are installed. The most significant factor in determining the depth of the lower surface when planning underground structures like tunnels is the height of the road drainage structures. The "Kukei Waterway" significantly reduces height while maintaining performance equivalent to conventional drainage channels in both the waterway and the chamber sections, allowing for a reduction in the excavation depth of underground structures and a smaller size of the structures themselves, thereby lowering overall construction costs. 【Features】 - Design load corresponds to T-25 longitudinal wheel load - Complies with the Ministry of Land, Infrastructure, Transport and Tourism Kinki Regional Development Bureau Design Guidelines, Volume 3, Road Edition - Over 30% lower in height compared to circular waterways and covered open waterways - The drainage inlets for road surface drainage ensure sufficient drainage capacity through drainage experiments - Packing material is used in the joint sections For more details, please contact us or download the catalog.

  • Gutters and U-shaped gutters
  • Dam construction

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Vertical gradient compatible type cross drainage ditch and catch basin "FR cross drainage ditch / FR catch basin"

Vertical gradient compatible type cross drainage ditch and catch basin "FR cross drainage ditch / FR catch basin"

Registered with NETIS! We flexibly accommodate the longitudinal slope of the road.

The "FR Cross Drain / FR Catch Basin" is a cross drain and catch basin that can accommodate the longitudinal slope of the road in a stepless manner. It can handle longitudinal slopes of up to 15%, ensuring smooth vehicle movement without any changes in slope. There is no need for cutting the drain or on-site pouring, which can significantly shorten the construction period. 【Features】 ■ Steplessly accommodates the longitudinal slope of the road ■ Ensures smooth vehicle movement without changes in slope ■ No need for cutting the drain or on-site pouring ■ Can significantly shorten the construction period *For more details, please feel free to contact us.

  • Gutters and U-shaped gutters

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Side ditch "Box-shaped U-shaped side ditch drainage type"

Side ditch "Box-shaped U-shaped side ditch drainage type"

Registered with NETIS! Equipped with a distributed water collection function and soundproofing features, cost reduction is also achievable.

The "Box-shaped U-shaped Drainage Collection Type" features a vertically cut lid that allows for the straight collection of surface water, making it less prone to clogging. Thanks to its dispersed water collection function, surface water can be drawn into the drain through the cutouts on the side of the lid, utilizing the alignment features between the drain and the lid. Additionally, by minimizing vertical, horizontal, and rotational misalignments, it helps prevent wear and chipping, making it difficult for the lid to shift and thereby reducing any rattling to a minimum. 【Features】 ■ Designed for load class T-25 ■ Dispersed water collection function ■ Cost reduction ■ Soundproofing function ■ Compatible with drainage pavement *For more details, please feel free to contact us.

  • Gutters and U-shaped gutters

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Thin circular waterway (tunnel side ditch)

Thin circular waterway (tunnel side ditch)

Adopting the "Perfect Joint Construction Method"! Utilizing the principle of leverage for one-touch installation!

This product is a trench specifically designed for tunnels, conceived with the needs within tunnels in mind. The construction employs the "Perfect Joint Method," which utilizes the principle of leverage for one-touch installation. Additionally, various pipes and equipment, such as communication cables and water supply mains, are buried in the tunnel passage. The shape has been designed to ensure sufficient space for this burial. 【Features】 ■ Registered with the Ministry of Land, Infrastructure, Transport and Tourism's New Technology Information System (NETIS) (CB-010015A) ■ Secures pipeline space ■ Achieved a construction record of 150 meters per day ■ Consideration for paving machinery ■ Enhanced accessories for emergency parking areas and more *For more details, please refer to the PDF materials or feel free to contact us.

  • Gutters and U-shaped gutters
  • Secondary paving products

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Bicycle Path Maintenance-Compatible Ditch "NK Slit Ditch Type II"

Bicycle Path Maintenance-Compatible Ditch "NK Slit Ditch Type II"

Low-cost type drainage ditch considering the safety of two-wheeled vehicles!

This is a low-cost half-buried type drainage ditch that minimizes the exposed concrete surface and excels in safety for two-wheeled vehicles on the roadside. Rainwater can be collected through the slits in the exposed surface, and drainage from permeable pavement is possible through the openings on the top surface of the main body. 【Features】 - A drainage ditch designed for bicycle paths with excellent safety - Expanded width for bicycle travel (150mm exposed surface) - Complies with the guidelines for creating bicycle-friendly environments, accommodating a transverse slope of 2% - Collects water through slits at the ends and supports drainage from permeable pavement - Economically advantageous - Can accommodate variable slopes This product has been registered with NETIS (SK-170004-A). *For more details, please download the PDF or feel free to contact us.

  • Gutters and U-shaped gutters

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Small Animal Protection Ditch "Haidasale Type II"

Small Animal Protection Ditch "Haidasale Type II"

This is a product developed to help small animals and insects that have fallen into ditches escape from them.

The "Haidasale Type II" is a product developed by modifying a part of a standard drainage ditch to create a slope, allowing small animals and insects that fall into the ditch to escape. While the ditch may not pose a problem for humans, it can be a significant barrier for small animals and insects. We propose this solution with the hope of saving as many lives as possible. The installation involves partially cutting the side wall of the ditch, attaching the Haidasale Type II, and finishing the gaps with joint mortar. 【Features】 - Being a precast product, it allows for easy installation and can shorten construction time. - By installing the slope only on the mountain side, it prevents small animals from crawling out onto the road side. - Easily connects to standard JIS drainage ditches and corner flumes. - NETIS-CG-990009-V - Awarded the Japan Design Award. For more details, please contact us or download the catalog.

  • Gutters and U-shaped gutters
  • Dam construction
  • Other civil engineering works

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What are the key points of overflow countermeasures that do not go to the civil side? 【*NETIS registered product】

What are the key points of overflow countermeasures that do not go to the civil side? 【*NETIS registered product】

Introducing points and NETIS registered products that prevent water accumulation on roads and rainwater runoff to private land due to high drainage functionality!

This is an introduction to a drainage system that prevents water accumulation on roads and rainwater runoff onto private land, featuring high drainage capabilities proposed by Soil Industry. The design rainfall intensity commonly used in planning is 90mm/h or 110mm/h, but it is also capable of sufficient drainage even at a significantly higher setting of "160mm/h." We offer three types of drainage channels to suit various applications. [Contents] ■ Steel Drain Smart Drain: Easy to install and space-saving design! (NETIS Registration No. KK-170071-A) ■ Special Circular Drain: Efficient drainage with a continuous slit structure! (NETIS Registration No. KK-060031-A) ■ WIN Drain: A free-slope drain that combines strength and durability! (NETIS Registration No. HR-130016-A) *For more details, please contact us or download the catalog to view.

  • Inspection hatches, manhole covers, and ditch covers
  • Gutters and U-shaped gutters
  • Dam construction

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Reborn Side Ditch "Drop Lid Type U-Shaped Soundproof Side Ditch"

Reborn Side Ditch "Drop Lid Type U-Shaped Soundproof Side Ditch"

Reduces noisy rattling sounds! This is a gutter that eliminates noise generated during vehicle passage.

The "Reborn Side Drain 'Drop Cover Type U-shaped Soundproof Drain'" analyzes the structure that generates noise and has been designed to fundamentally prevent noise by making the cover support part curved (R). There are also types that accommodate permeable pavement and road surface subsidence, as well as rainwater retention and infiltration types that suppress rainwater runoff. Additionally, we offer a free slope soundproof type of RVS drain in our lineup. 【Features】 ○ Noise reduction due to structural factors (curved cover support) ○ No need to use noise prevention rubber or similar materials ○ The curved cover support prevents debris from accumulating during drain cleaning ○ Easy removal of the cover due to the curved design ○ No special construction techniques are required For more details, please contact us or download the catalog.

  • Gutters and U-shaped gutters
  • Dam construction

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Bridge curb and drainage ditch FD drain

Bridge curb and drainage ditch FD drain

It has a double safety structure to prevent the lid from popping up and scattering.

The FD drain, which serves as a curb and drainage channel for bridges, features a double safety structure that prevents the cover from bouncing up and scattering. The underlying SG (melted zinc-aluminum alloy) coating has several times the corrosion resistance of standard hot-dip galvanized coatings, providing excellent rust prevention. Additionally, it has superior adhesion to various types of paint, ensuring that there is no concern about peeling over time. The nylon 12 coating maintains an average thickness of over 300μm, effectively blocking moisture from the iron substrate and underlying coating, thus achieving a long lifespan. Its excellent wear resistance means that even in harsh environments like road shoulders, it is less likely to chip or peel. For more details, please contact us or refer to the catalog.

  • Drainage and ventilation equipment
  • Gutters and U-shaped gutters

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Soundproof type free slope ditch "OS ditch"

Soundproof type free slope ditch "OS ditch"

NETIS Registration: CB-100060-A (Old Number) Soundproof Type Free Slope Drainage 'OS Drain'

○ The soundproof (noise-reducing) type free gradient ditch, which adds soundproofing functionality to the conventional free gradient ditch (variable ditch) and eliminates protrusions on the sides, is becoming mainstream. Among them, this OS ditch possesses numerous excellent features that are not found in other companies' soundproof variable ditches. ○ This is a soundproof type free gradient ditch designed to guide rainwater from the road surface into the ditch. (Multifunctional free gradient ditch) ○ The soundproof type free gradient ditch "OS ditch" is a low-carbon concrete product made using blast furnace slag fine powder.

  • Gutters and U-shaped gutters
  • Secondary paving products

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