LESSO Pipeline Wanzhanheng Building Materials Co., Ltd. (1st Class Agency)

Qingdao Chengyang Building Materials Wholesale Market (Xiucheng Road)

Weixing Pipeline (Chengyang Operating Center)

Takley Hardware Lockset Wholesale (Chengyang Qicheng Decoration Materials Market Shop)

Hangao Hardware Qingdao Flagship Store

Xinshengda Hardware