Propylene Glycol, PU Foam, Polyacrylamide manufacturer / supplier in China, offering Material Price Two Component a+B Spray Liquid Expanded High Density Insulation Polyurethane Foam, High Density Spray Building Expanding Insulation Two Component Liquid PU Polyurethane Foam, As504 Closed Cell with 245fa Spray Foam Insulation Polyurethane and so on.