Corrugated Pipes, Waterstops, Expansion Joints manufacturer / supplier in China, offering Short Fiber Nonwoven Geotextile Woven Geotextile Fabric Used for Road and Anti-Seepage Engineering Construction, Best Price Custom Highway Wholesales Prices Different Diameters Galvanized Corrugated Steel Culverts Steel Arch Culvert Pipes for Road Construction, Impermeable Dam Reservoir Liners HDPE Geomembrane 0.3mm 0.5mm 0.75mm 1mm 1.2mm and so on.