... 50L gas cylinders We have rich experience of export gas products like argon gas, laser argon, helium gas, acetylene gas, propane ... GasAr99.9%150 bar/200 barFemaleWelding arc welding, stainless steel smelting, container, steel structure manufacture, mold processing, ect.99.99%150 bar/200 ... )150 barShort-circuit arc, jet arc and pulse arc(carbon steel and the low alloy ...