Planetary Gearbox, Slew Drive, Tracked Undercarriages manufacturer / supplier in China, offering Output Torque Planetary Slew Gear Reducer for Customer Request Specifications, General Purpose Gearbox Slew Gearbox Auburn Gear Reducer Model 6b\Auburn Gear Model 7, Hsm Gearboxes Suitable for Transit Mixers with Drum Capacity From 6 up to 18 Cubic Meters and so on.