It is an object of the present invention to provide a cleaning device for removing sludge from {HEAD ~ elevator ropes} without contaminating the hoistway and {TAIL ~ the machine room} 
without contaminating
It is an object of the present invention to provide a cleaning device for removing sludge from { HEAD ~ elevator ropes } without contaminating the hoistway and { TAIL ~ the machine room }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL