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This is a public sewage and stormwater manhole according to the specifications of the Tokyo Metropolitan Bureau of Sewerage. It is used not only in Tokyo but also in a wide area.
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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!
This is a public manhole according to the Tokyo Metropolitan Government Sewerage Bureau specifications for sewage and stormwater. It is used not only in Tokyo but also in a wide area. As products, we offer various types of sewage manholes, sewage manhole covers, edge blocks, bottom plates for L-shaped manhole edge blocks, irregular side blocks, sewage manhole bottom blocks, stormwater manholes, stormwater manhole covers, and irregular stormwater manhole top, side, and bottom blocks, among others. For more details, please contact us or download the catalog.
Suitable for heavy rain measures: 'L-shaped drainage permeable double catch basin'!
The "L-shaped permeable two-chamber drainage basin" is a rainwater basin equipped with permeation functionality. It temporarily holds rainwater on one side and processes the excess rainwater in a different direction, adopting a storage method to prevent actual rainwater damage. It addresses various issues such as increased rainwater runoff into the sewer system, flooding damage caused by frequent heavy rain (guerrilla rain), and significant flooding in underground shopping areas and subways. 【Features】 ■ Twice the storage capacity ■ Easy installation ■ Enhanced functionality *For more details, please download the PDF or feel free to contact us.
