Corrugated Pipes, Waterstops, Expansion Joints manufacturer / supplier in China, offering Expansion Joint PVC Waterstop for Tunnels/Dams/Basements, Oil-Resistant, Self-Adhesive PVC Waterstop Tape for Swimming Pools & Waterproofing Projects, ISO 9001 PVC Waterstop Seal for Underground Structures, Custom Sizes and so on.