Supply Mapp gas,Propane gas, and welding torches, also refrigeration gas,refrigeration parts for HVAC Application: 1.Welding copper or brass fittings 2.HVAC after market 3.Processing jewelry typical applicationsQxygen is not neededUsed for copper/brass fittings welding/brazingCGA600 connectionHVAC after marketHigh working temperature( ≥1000°C )Jewelry process1.5m hose with handle for easy use ...