... in elevator parts supply, such as such as display, push buttons, casing panels, control panels, communications panels, inverter, ... guide shoe, encoder,inductor,relay,buffer,door engine, sensor switch,COP,door Contact,coupler,interphone,oil cup, light c ... ,brake,level inductor, calling board, comb plate,overspeed governor, door lock, service tool, PCB board, elevator software,etc. . All ...