Rifeng Pipe (Xiucheng Road Branch)

Qingdao Chengyang Building Materials Wholesale Market (Xiucheng Road)

Yongtengfei Pipe Fittings Valve Daquan (Chengzi Community West Area Branch)

LESSO Pipeline (Sheng'ao Hardware, Mechanical and Electrical Market Xiucheng Road Branch)

Weixing Pipeline (Sheng'ao Hardware Market Branch)

Hanhe (Liansu) Wei Xingzhong Cai (1st Class Agency)