... environment eroded by rain, snow and much dust for remote control of crane, electric block and other equipments.2. Main ... optimistic and reverse controlling except "on" button of general circuit switch is of function of automatic lock. It not only predigests ... : .COB61,COB61A, COB62, COB62A, COB63, COB63A, COB64 ,COB64A,COB65Production: Control Station, Control Switch, COB 61 COB62 COB63 COB64 COB65