Refrigerant Gas, R134A, R22 manufacturer / supplier in China, offering Energy Saving R600A Refrigerant Grade Isobutane Gas for Low Temperature Small Freezer Systems, R600A Isobutane Refrigerant Gas A3 Class Hc Coolant for Closed Self-Contained Refrigeration System, Stable Working Performance R600A Hc Refrigerant Isobutane for New Generation Domestic Cooling Equipment and so on.