Corrugated Pipes, Waterstops, Expansion Joints manufacturer / supplier in China, offering Customizable High-Quality Steel Edge Waterstop - Waterproof, Corrosion-Resistant for Construction/Concrete Projects, Galvanized Steel Edge Waterstop with Natural Rubber Core - Tear-Resistant, Expansion Joint Waterproof Seal, Steel Edge Waterstop for Subway/Tunnel/Dam - Aging-Resistant, Corrosion-Resistant Waterproof Rubber Strip and so on.