heavy industrial gearbox Moderate plane the new-type hard tooth all , have large torque range , adopt unit structure module design horizontal installation can vertical to install very. There are solid shaftings , empty mandrel and shrink an empty mandrel to export. Being wide, range of application adopt high strength high-quality alloy steel is it is it quench to visit to carburize , have high with high efficiency life-span gear wheel and high to let axial of spending, radial load, the operation noise is low, dependability is high, such advantages as the structure compactness.