LESSO Pipeline, JDG Guan, Cable Qiaojia,

Jinan Shuntong Tube Industry Firm (Yixiange Xiyuan Branch)

Jinanda Station Valve Paint (Jinan Zhejiang Hardware Building Materials City Branch)

Quancheng Valves Hardware Mechanical And Electrical

Ginde Plastic Industry Jinan Operating Center

Jinan Xinghua Hardware, Mechanical and Electrical Co., Ltd.