Liaoyang Steel Tube Co., Ltd. is one of the domestic backbone enterprises engaged in the modernized pipe production in Liaoyang City of Liaoning Province. At present, LSTC runs three UOE pipe production lines and four SSAW pipe production lines in four workshops. We produce UOE pipes with outer diameter from 406 to 1,626mm, and wall thickness from 5 to 32mm; and SSAW pipes with outer diameter from 219 to 2,540mm and wall thickness from 5 to 22mm. Our maximal annual output capacity is 1.2 million metric tons.