Having imported and transformed the world advanced fully-computerized AC VVVF elevator technology, Shanghai Mitsubishi Elevator Co., Ltd. is the first enterprise in China to launch VVVF series elevators. On this basis, SMEC has been continuously involved in the dynamic importation and transformation of the latest world-leading technology such as GPS/GPM fully-computerized network control intelligent series elevators and new escalator series. Besides, SMEC has developed high quality elevators for residential applications. In recent years, the transformation of such elevator technology as the latest machine-room-less has been accelerated.