with advanced microcomputer technology, perfect safe protection, finely selected components, and professional installation technology, win1000 passenger elevators will bring you the full confidence and greatest care. the vvvf variable frequency driving, low-noise reduction box, smooth s-type speed curve, quiet running and accurate arrival all make the in-building traffic a lind of enjoyment. the design of the advanced variable frequency technology, special frequency conversion motor, high efficient driving system, and the energy-saving control system represents not only a lind of saving attitude, but also a support to environmental protection. e mail:gavin149 at hotmail.com