Seismic Isolation Bearing, Hydrophilic Waterstop, Bridge Rubber Bearing manufacturer / supplier in China, offering Rubber Hydrophilic Waterstop for Construction Joints for Use in Construction and Deformation Joints in Tunnels, Concrete Joint Hydrophilic Expansion Water Stop Bar/Water Stopper for Waterproofing Engineering Bentonite Rubber Water Stop Bar, 20mm * 25mm Bentonite Waterstop Swellable Expansion Rate 150%-300% Building Waterproof Material Hydrophilic Expansion Water Stop for Concrete Joints and so on.