Blend Polyol, Flame Retardant, Polyether Polyol manufacturer / supplier in China, offering China Factory Wholesale Polyurethane Insulation Foam Material Isocyanate Polymeric Mdi, Sdp1234 – The Best PU Foam for Bus & Train Insulation, High-Adhesion Sdp1234 PU Foam – Perfect for Seamless Sealing and so on.