Masterbatch, Plastic Products, Plastic Film manufacturer / supplier in China, offering Hydrophilic Swelling Bentonite Strip Swellable Waterstop for Basement Construction in Waterbar Joint, Sealant Butyl Sealing Hydrophilic Waterstop Seal for Precast Concrete Expandable for Construction Joint PVC Waterstop, Custom Cutting Modern PVC Rubber Waterstop Plate Industrial for Construction Concrete Building Waterproof Coil-Rubber and so on.