... applied in the open air and and the environment eroded by rain, snow and much dust for remote control of crane, electric ... screw.2) Dismantle the bottom cover. After putting all the control lines into the sealing sheath, fasten them at the connection ... . Item: .COB61,COB61A, COB62, COB62A, COB63, COB63A, COB64 ,COB64A,COB65Production: Control Station, Control Switch, COB 61 COB62 COB63 COB64 COB65