... , light and economic COB series type control button switch. 2. Features a mechanical interlock to ensure ... hoist, open conveyor blt, building line etc. .2. Dimension:3. Model: Model No.:COB61COB62COB63COB64COB654. About ... changeover switch etc. for more than 20 years. 2.Provide OEM, ODM service, owning ourself mould ... provided. COB61 indirect operation remote control hoist crane control button switch