Amico Valve Water Meter (Zhengyang Middle Road Branch)

Aihua Water Heating Building Materials (Chengyang Shuangli Garden Branch)

Dunyun Valve (Chengyang Branch)

Qingdao High Pressure Valve Co., Ltd.

Qingdao Chengyang Building Materials Wholesale Market (Xiucheng Road)

Yushuo Hardware (Hairun Guangchang Branch)