Shanghai Yuantuo Machinery Technology Co., Ltd 

Address: Building 3, No. 329 Dengmin Road, Fengxian District, Shanghai

Phone: 13611723914 

E-mail jackekunming@yuantuojixie.com 

Hunan Yuantuo Sealing Technology Co., Ltd 

Address: No. 327 Guyuan Road, High salary Technological Development Zone, Changsha 

Contact phone number: 17700267766 

E-mail jackekunming@yuantuojixie.com