Plastic drain board
Plastic drainage board is made of HDPE high-density polyethylene as raw material. The plastic bottom plate is punched into conical boss or convex point of stiffener (or hollow cylindrical porous). The compressive strength and overall flatness are greatly improved. The width is 3 meters and the length is 10 meters or more. Good drainage system is of great importance to the construction period of civil engineering and the normal use and life of structures To the role of.