Slew drives are used for concurrent transmission of axial and radial forces as well as transmission of tilting moments. Slew drives consist of a ball or roller slewing ring, hydraulic or electric drives, and a completely enclosed housing. Series SE slew drives are designed with worm gear. worm gear for TV Satellite ,antenna in Wooden case and DAUBERT VCI . .Huafang is fully equipment with all advanced machines for manufacturing, assembly, inspection, test processes and automatic cleaning and painting and power coating lines.