
Ministry of Land, Infrastructure, Transport and Tourism: Compliant with the Public Building Equipment Construction Standards! Lineup of φ900 and φ1200!

This is a public sewer and stormwater manhole specification from the Tokyo Metropolitan Bureau of Sewerage. It is used not only in Tokyo but also in a wide area!

No need for specialized equipment or contractors; simply lay down the sheet to eliminate odors! Easy installation, with high immediacy and durability, preventing extensions of work due to sudden odor occurrences.
No need for specialized machinery or contractors; simply laying down the sheet allows for deodorization! With easy installation and high effectiveness, it serves as a risk hedge against delays in construction due to sludge or unpleasant odors.

This is a type of drainage box from the former Urban Development Corporation (now the Urban Renaissance Agency). It has sewage, rainwater, and infiltration.

Automatic cleaning strainer that significantly reduces the costs associated with cleaning and repairing or replacing on-site strainers.