... : centeral opening 4.supply kinds of elevator door parts Elevator cabin door operator VVVF 1,The hanger is fulfillment of GB7588 ... belt .low noise4,Strong resistance of electromagnetic interference5,Net door opening width:600mm-1800mm6,Applicable sill width:55mm/60mmOur ... company also produce other type of elevator door systems, selcom,mitsubishi,fermator………and elevator parts , selcom ...