- Shanghai Yingchi Trading Co., Ltd.
- Address:No.1377 Xin Tan Wa Road,Zhoupu,Nanhui District,Shanghai
- Welking Industries.,Limited
- Address:Unit 403. No.3, Lane 1379 Zhongshan East Road
- Sichuan Jiangyou Singular New Material Development Co., Ltd.
- Address:(No.2-2 first floor,71 building living area,the thrid factory of ChangGang)Hanzeng Town of Jiangyou
- Qingdao Xinghua Yuliang Welding & Cutting Tools Co., Ltd.
- Address:
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