... productionand intermediate for Halon 1211 production.Refrigerant gas is used in household , industrial and commercial airconditioning systems. It can ... ,r415b,r417a,r502,r507a,r600a etc.In addition,we also are professional in doing Compressor,Refrigerating Oil,Air Conditioning etc.4 ... being exposed to heat source , sunlight and raining. In case the cylinder,valves and other accessories are damaged ,it ...