... , metallurgy , and electric industry99.999%150 bar/200 barArgonAr99.9%150 bar/200 barFemaleWelding arc welding, stainless steel smelting, ... welding, artificial gems99.995%150 bar99.999%150 barCO2CO299.8%150 bar/200 barQF-2Chemical industry, welding, casting mold99.999% ... industry, leak hunting, air balloon99.99%150 bar/200 bar99.9995150 bar/200 barAcetyleneC2H298.5%32 barQF-15QF-15AWelding, cutting ...