Are produced inside and outside the company's products have smooth surface, outer (inner) diameter error is small, uniform thickness, fine microstructure, mechanical properties and good corrosion resistance, long life, etc., can provide the product materials are 304,304 L, 321, F321, 316,316 L, 316Ti, 317L, 347H, 310S, 904L, 800H, S31803 austenitic, martensitic and duplex steel to produce steel pipe diameter size of the outside diameter 6mm-630mm, wall thickness for the 1.0mm-40mm. Implementation of standards are: GB: GB/T14976-2002, GB/T14975-2002, GB13296-91.