Consists of 7 pipe body production lines and coupling production lines, capable of processing API standard pipes with diameters ranging from 26mm to 508mm and the BT series special threaded joint oil product tubing and casing developed by BaoTou Steel. The annual production capacity is 480000 tons, and the products are used in well-known domestic oil fields such as PetroChina, Sinopec, and CNOOC. The coupling production line processes 1.15 million casing and tubing couplings annually.