Tianjin OuNaiDa Transmissions Machinery Co., Ltd. has manufactured gear pinions, gear racks, timing pulleys, belt pulleys, timing belts, roller chain, sprockets for 20 years. OEM parts also accepted. We have our own factory and professionnal team.

• Bespoke Solutions from Highly Experienced Specialists .
• Reliable Quality Assurance System.
• Cutting-Edge Computer-Controlled CNC Machines
• Extensive Inventory of Spare Parts and Accessories
• Well-Developed Worldwide Marketing Network