Blend Polyol, Flame Retardant, Polyether Polyol manufacturer / supplier in China, offering PU Spray Foam B2 for Wall Insulation, Sdj2402 Rigid PU Foam for Refrigerator Insulation with Low Thermal Conductivity, Sdl3202 Water Blowing Agent Rigid PU Foam Used for The Continuous Line Blend Polyol п о л и о л and so on.