Wulingyuan Tube Industry Co., Ltd. Hunan Storage Unit

Bocheng Steel Material Business Department (Yuehu Unit Phase 1 Branch)

Hebei Hongtai Tube Industry Co., Ltd. (Hunan General Agent)

Changsha Guanbida Building Materials Trading Co., Ltd.

Tianliguan (Jinma Road Branch)

Changsha Tianyu Wantou Falan Pipe Fittings