Usage characteristics of plastic drainage channel systems: 1. PE material has the advantages of light weight, anti-aging, strong corrosion resistance, strong bearing capacity and surface. 2. The unique design of "U" type can effectively increase the drainage capacity and enhance the self-purification function. High drainage efficiency. 3.The installation and maintenance are simple, and the construction depth is shallow.It can effectively reduce the amount of pipeline construction and reduce the difficulty of construction.