Corrugated Pipes, Waterstops, Expansion Joints manufacturer / supplier in China, offering Cold-Resistant Chemical-Resistant Rubber Waterstop Sewage Treatment Plants, Durable and Easy to Install Hydrophilic Rubber Waterstop Tape for Waterproofing Tunnel Segments, Heavy Load Modular Expansion Joint 1000kN Capacity with Anti-Corrosion Coating for Harsh Environments and so on.