PU Foam, Polyurethane Foam, Silicone Sealant manufacturer / supplier in China, offering Gns W33 High Yield Professional Spray Winter Polyurethane Foam, Gns F44 Ready-to-Use Fire Retardant Professional Filling Polyurethane Foam with Class B2, Gns Self-Expanding B1 Fire Retardant Polyurethane Foam Without Cfc′s and H-Cfc′s and so on.