Car manufacturing precision steel pipe is produced by cold drawing technology, hot rolled seamless  steel tube is only semi-finished products.Precision tube is used in the production of the many important components products, such as control system, drive shaft, shock absorber and air spring, fluid distribution, camshaft, chassis parts, drive shaft, chassis and axle seat structure and enhanced dashboard, steering parts, pieces of structures.Precision steel tube using the carbon steel and alloy steel  as raw material