Application: mainly used for air conditioning and refrigeration, installation of air conditioner, construction water and gas Application: Air-Conditioner and Refrigeration,Oil Lines, Gas LinesMachinery & Industrial,Plumbing, Heating,Machinery & Equipment,General Engineering Fields,Electrical and Conductive Fields Standard: ASTM B280, ASTM B88, ASTM B68, ASTM B75, ASTM B836 standard, EN 12735, EN ...