... the environment eroded by rain, snow and much dust for remote control of crane, electric block and other equipments.2. Main ... 2) Dismantle the bottom cover. After putting all the control lines into the sealing sheath, fasten them at the ... : .COB61,COB61A, COB62, COB62A, COB63, COB63A, COB64 ,COB64A,COB65Production: Control Box(switch control box,pushbutton control box) COB 61, COB61A, COB62, COB62A