Blend Polyols, PU Catalyst, Polyurethane Waterproof Material manufacturer / supplier in China, offering Solid Content 45% Polymer Polyol (POP) for Polyurethane Flexible Foam, Solid Content 15% Polymer Polyol (POP) for Polyurethane Flexible Foam, Polyurethane Copolymer Pop Polyol Used in High Capacity Hr Foam Production and so on.