Blend Polyol, Flame Retardant, Polyether Polyol manufacturer / supplier in China, offering Flame Retardant Rigid PU Foam Sdl3232 for Cold Storage Sandwich Panels, Factory Wall Panels, etc, China Blended Polyol Spray Foam Sdp1222 for Building Wall Insulation, Low Voc Emitting and Low Gwp Rigid Polyurethane Foam for Insulation and so on.