Zheng main products refined steel as a standard German standard DIN2391 light precision seamless steel tubes, steel pipes fully meet the targets Germany, Japan, the United States Seamless standards. The salient features are: steel outer wall without oxide layer, withstand high pressure, no leakage, high precision, high finish, cold deformation, flaring, flattening free from cracks, surface rust treatment, widely used in hydraulic systems steel , injection molding machine with a steel pipe, hydraulic machine with a steel pipe, vessels made with steel, EVA foam hydraulic machine, hydraulic cutting machine precision steel tubes, shoe machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, fittings, pipe fittings, rubber machinery, forging machinery, die-casting machinery, engineering machinery, concrete pump with high pressure pipe, sanitation vehicles, automotive industry, shipbuilding industry, metal processing, military, diesel engine, internal combustion engines, air compressors, construction machinery, forestry machinery, supporting a steel pipe fittings, fittings, high pressure tubing, bright steel, precision steel tubes light and easy to bend steel, cold drawn precision tubes.