Tai'an Longling Valve Co., Ltd.

Tai'an Gaoshan Mechanical And Electrical Valve

Tai'an Longling Valve Pipe Fittings Co., Ltd. (Zhongting Shangcheng Branch)

Luguang Hardware Comprehensive Business Department

Bull Hardware and Building Materials Department Store (Longtan Road Branch)

Yijiayou Hardware & Electrical Material Co., Ltd. (Chunfeng Shilidian)