Silicone Sealant, PU Foam, Super Glue manufacturer / supplier in China, offering B2 B1 B3 Waterproof Flexible Expanding Closed Cell Polyurethane PU Foam for Window Door Frame Gaps, Fire Resistance Spray Expanding Polyurethane Foam B2 PU Foam, Ms Polymer Adhesive Sealant High Tack for Construction and so on.