... has a full range of gas products, including industrial gas, electronic gas, standard gas, mixture gas and liquefied gas, such as high purity He ... , Ar, H2, CO2, CO, C3H8, O2, CH4, SF6, N2O, N2 and mixture gas ... barNitrogenN299.9%150 bar/200 barQF-2Replacement gas and protection gas for chemical industry, metallurgy , and electric ...