Shanghai Strong is a total solution provider on the special metal flame heating process. We provide high-efficiency and safe gas supply solutions to help customers to solve the heating, welding and cutting technical problems. We focus on the overall flame heating solutions of special alloy steel and non-ferrous metal hot spinning, miniature copper pipe brazing in refrigeration industry, pre-heating for welding of underground coal mine equipment, flame quenching treatment of sprocket and bearing and other professional fields.