Mengcun Songlin Steel Tube

Hebei Cepu Tube Industry Co., Ltd. (Petroleum Taoguan)

Hebei Guanghao Pipe Fittings Co., Ltd.

Hebei Huihai Luoxuan Steel Tube Co., Ltd.

Hebei Hasee Steel Tube Manufacture Co., Ltd.

Cangzhou Junyue Wufeng Steel Tube Co., Ltd.