Product Description The rainwater collection system is an important part of the "Technical Guidelines for Sponge CityConstruction" issued by the Ministry of Housing and Urban-Rural Development in 2014. To put it simply, the urban rainwater is changed from the traditional rainwater well into the river channel to the rainwater well after primary filtration, part of

Product Description The plastic drainage board is made of polyethylene (HDPE) as the raw material and the plastic bottom plate is punched into conical projections or stiffening ribs (or hollow cylindrical holes). The plastic drainage board adopts a special process to press the plastic sheet out of the closed and convex cylindrical shell to form