List of Inspection hatches, manhole covers, and ditch covers products

Opening the central cover of the manhole lid at that location will turn it into a toilet!

• Inspection hatches, manhole covers, and ditch covers

Featuring text, illustrations, and signatures! Introducing custom processing that meets a wide range of needs.

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

Ideal for floor wiring in centralized control rooms of factories, buildings, etc.! A functional finish without compromising aesthetics.

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

Introducing tree circles for tree protection that create a comfortable urban space in harmony with buildings and nature.

• Inspection hatches, manhole covers, and ditch covers
• Grating
• Tree protection materials and plant boxes

It is resistant to rust, corrosion, and weathering, helping to reduce maintenance costs!

• Inspection hatches, manhole covers, and ditch covers
• Other fittings
• Safety and consumables

Various strength calculation methods for grating are clearly presented using diagrams and formulas!

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

A super-thin side drain cover that excels in design without compromising appearance! It's safe to walk over with high heels or a wheelchair.

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

The filling made of shock-absorbing rubber chip cushioning material reduces walking strain!

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

Water retention function that alleviates the heat island phenomenon! It is an environmentally friendly recycled product.

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

Available in three sizes! It is an aluminum ceiling inspection hatch in a frame type.

• Inspection hatches, manhole covers, and ditch covers

It is possible to achieve beautiful finishes that match various types of flooring materials such as P tiles and porcelain tiles!

• tile
• Inspection hatches, manhole covers, and ditch covers
• Tile work

This tool is suitable for places where the safety of kitchen facilities and a clean drainage environment are emphasized!

• Inspection hatches, manhole covers, and ditch covers
• Drainage and ventilation equipment

Products related to Polacon that help secure rainwater infiltration and storage, prevent clogging, and prevent ground subsidence.

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

Material characteristics with minimal aging and discoloration! There is zero worry about rust, and scratches and dirt are not noticeable.

• Inspection hatches, manhole covers, and ditch covers

It is made of natural materials and is also environmentally friendly! It prevents slope collapses caused by pests and accidents from people falling.

• Inspection hatches, manhole covers, and ditch covers
• wood

The joint surface has a concave and convex interlocking shape! A hand hole that can be easily processed on-site.

• Inspection hatches, manhole covers, and ditch covers

Free layout that accommodates complex shapes such as grooves. Compatible with U-shaped channel grating for replacement and custom orders!

• Inspection hatches, manhole covers, and ditch covers
• Gutters and U-shaped gutters
• Other park materials

It can accommodate complex drainage shapes such as pools, allowing for a flexible layout! Custom and special orders are accepted.

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

We provide safe and secure underfloor storage and inspection openings.

• Safety and consumables
• Inspection hatches, manhole covers, and ditch covers

No harmful substances such as adhesives or alternative fluorocarbons are used at all! The high insulation and high workability insulation bag is an environmentally friendly product.

• Safety and consumables
• Inspection hatches, manhole covers, and ditch covers

Introducing examples of the installation of "colored drainage covers" that protect the aesthetics of U-shaped gutters and ensure safety. They can also be replaced with existing concrete covers.

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

[Baseball Stadium] Introducing examples of the installation of "colored drainage covers" that protect the aesthetics of U-shaped gutters and cover them safely. Can be replaced with existing concrete c...

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

Introducing a case study of the installation of "colored drainage covers" that protect the aesthetics of U-shaped gutters and ensure safety. They can also be replaced with existing concrete covers.

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

Introducing a case study of the installation of "colored drainage covers" that protect the aesthetics of U-shaped ditches and ensure safety. They can also be replaced with existing concrete covers.

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

Introducing examples of the installation of "colored drainage covers" that protect the aesthetics of U-shaped gutters and ensure safety. They can also be replaced with existing concrete covers.

• Drainage material
• Gutters and U-shaped gutters
• Inspection hatches, manhole covers, and ditch covers

Excellent corrosion resistance and insulation! FRP checker plates are ideal for indoor and outdoor flooring and coverings.

• Synthetic Resin Plywood
• Inspection hatches, manhole covers, and ditch covers
• Special flooring/indoor and outdoor

Installed in 1 minute! A no-welding, one-touch window with a safety net for additional safety measures.

• Inspection hatches, manhole covers, and ditch covers
• Safety and consumables
• Manhole body

[Installation completed in 1 minute] For various equipment such as conveyors, hoppers, storage bins, and chutes, necessary inspection and cleaning points for on-site maintenance!

• Inspection hatches, manhole covers, and ditch covers
• Safety and consumables
• Manhole body

A new standard for ground construction! Lightweight design and unique opening and closing mechanism for excellent maintenance.

• Inspection hatches, manhole covers, and ditch covers

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

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

Contributing to society with 'warm technology.' That is the philosophy of our manufacturing.

• Outdoor furniture, play equipment, furniture hardware
• Inspection hatches, manhole covers, and ditch covers
• Other construction services

Can be locked with the lid fully open! A key-operated hatch that allows you to securely lock the lid.

• Inspection hatches, manhole covers, and ditch covers

Custom dimensions available! Introducing a hatch made of stainless steel with excellent weather resistance.

• Inspection hatches, manhole covers, and ditch covers

Outer frame one-touch installation! This is a compact underfloor inspection hatch suitable for quick inspections.

• Inspection hatches, manhole covers, and ditch covers

Numerous listings for floor inspection openings that shut out the leakage and intrusion of cold and warm air.

• Inspection hatches, manhole covers, and ditch covers

No need for disassembly and assembly of the inner frame as before! A product suitable for use in energy-efficient homes.

• Inspection hatches, manhole covers, and ditch covers

The opening for the handle is easy to create with a drill hole! A floor inspection hatch with custom dimensions is also available.

• Inspection hatches, manhole covers, and ditch covers

We are introducing a revamped construction method with an evolved indoor floor inspection opening.

• Inspection hatches, manhole covers, and ditch covers

Underfloor inspection opening for the bed construction method (underfloor material: particle board, structural plywood)

• Inspection hatches, manhole covers, and ditch covers

Shut out unpleasant cold air and drafts! An inspection opening suitable for use in hospitals and hotels.

• Inspection hatches, manhole covers, and ditch covers

A clean design with both frames featuring a joint. Introducing an inspection opening certified by the Public Architecture Association!

• Inspection hatches, manhole covers, and ditch covers

The outer frame is switchable! A ceiling inspection hatch with a structure that minimizes discrepancies and differences in height.

• Inspection hatches, manhole covers, and ditch covers