Cold Storage Refrigeration Unit manufacturer / supplier in China, offering Portable Refrigerant Recovery Machine and Water-Cooled Cooler, 99.93% Purity 13.6kg/30lbs Disposable Cylinder Refrigeration 134A Refrigerant Gas R134A High Processing Efficiency, 99.9% Purity Refrigerant R134A/R404A/R410A for Refrigeration Mac R134A Gas and so on.