Founded in 1994, Ningbo Zhenhai Sanyuan Machinery Works(SMW) is a shaft and gear specialist with annual production of 5,000,000 pieces of motor shaft, drive shaft, gear shaft and gear in the workshop with size of 10,000 SQM. A full set of precise processing facility like grinding machine, CNC lathe, milling machine, stamping machine, thread roller machine, high frequency heater quench and gear hobbing machine together with fine test equipment and control ensures good quality and punctual delivery. Our experienced R&D could fully satisfy your customized request based on your sample or drawing.