Features * Specially designed for heavy industry; * Ecologic design with independent intellectual property rights; * Germany imported worm wheel hob is used to process turbine, which optimizes contact area, ensures intensity; * Heat treatment is well used for the surface of screw, hardness achieve 500-550HV; * Low Friction, longevity noodle, high-efficiency; * Power source is enough, motor and other driving machine can be connected directly, hand driving is available; * Output type is multiple.