Hangzhou Ever-Power Transmission Co., Ltd.,founded in 1988,is a company specializing in the production of various planetary gearboxes,Construction lift accessorie, screw jacks, Traction Machine,Curtain Drive Gearbox,screw shafts and other mechanical transmissions.At present, the specifications of our products is up to over 10,000 iterms. The reduction ratio range is from 3.3 ~ 9000, the output torque range is from 500 ~ 450000N.m. More than 90% of our products exported to the United States, Europe, Australia, South America, the Middle East and Southeast Asia. The installation and dimensions of our planetary gearbox,Screw Jack,Screw Shaft are exactly the same as the ones made by well-known European and American planetary gearbox,Screw Jack,Screw Shaft manufacturer. They are interchangeable. The company has many Taiwan-made high quality machines, such as fully automatic integrated machining center, CNC grinding machine, CNC gear machines and CNC machine tools etc. to ensure high accuracy for the parts. All of Our employees have undergone a rigorous professional training, have good skills and excellent quality. The company adopt modern computer management systems and has successfully passed ISO9001: 2000 quality system certification.