Propylene Glycol, PU Foam, Polyacrylamide manufacturer / supplier in China, offering Two Component Polyol and Isocyanate White Polyurethane Spray PU Foam, As504 Closed Cell Retardant Insulation Liquid Spray White Polyurethane PU Foam, Part a and B Spray Liquid Building Insulation Material Polyurethane Foam and so on.