Contact welding involves a pair of copper electrodes in contact with the two sides of the steel pipe being welded, and the induced current has good penetration. The two effects of high-frequency current are maximized due to the direct contact between the copper electrode and the steel plate, so the welding efficiency of contact welding High and low power consumption, it is widely used in the production of high-speed and low-precision pipes. Contact welding is generally required when producing particularly ERW steel pipes.

Changsha Xiangjia Metal Materical Co., Ltd. the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.