Blend Polyol, Flame Retardant, Polyether Polyol manufacturer / supplier in China, offering Blend Polyol Used for Discontinuous Sandwich Panel Designed with Hcfc-141b System Sdb2232, Blend Polyol Used for Cold Storage Insulation Polyurethane System Foam Sdp1133, Spray Rigid PU Foam for Cold Storage Foam Insulation and so on.