Blend Polyols, PU Catalyst, Polyurethane Waterproof Material manufacturer / supplier in China, offering Solid Content 30% Polymer Polyol (POP) for Polyurethane Flexible Foam, Solid Content 10% Polymer Polyol (POP) for Polyurethane Flexible Foam, Solid Content 15% Polymer Polyol (POP) for Polyurethane Flexible Foam and so on.