Zhongcai Pipeline (Datong Street Lincheng No.1 Elementary School Shop)

Yongtong Profession Tubulation

Hebei Lesu Tube Industry Co., Ltd. (Yuan Hebei Kangle)

Jingao Tube Industry

Liansuwang Tube Industry Hengxin Waterproof

Buke Sanitary Ware Water Heating Pipe Fittings (Xinglin Street Shop)