Product introduction:Plastic drainage board taking PVC as main materials adds other assistants such as anti-aging,anti-oxidation and anti-ultraviolat materials,and through the process of extrusion molding,groove on the front and reverse side.The drainage board is soft and flexible,convenivently for delivery and construction with excellent corriosion resistance performance.Application:Prevent the railway,highway,airport runway projects for mud pumping;prevent the bridge culvert and tunnel for seepage.