Qingdao Theory provides the drive and transmission products from ODM to OEM: planetary gearbox, two-speed planetary gearbox, axle,and manufacture of custom-built precision components.
Contact: Christine Green
Phone: 86-155 8987 8753
E-mail: info@theoryemtech.com
Whatsapp:86-137 8063 1263
Add: Offcie Building Phase 1.2 of Vanke City,No.99 Changzhou Road Dongge Street ,Pingdu City, Qingdao,China
