... pneumatic rubber tyres,solid rubber tyres or polyurethane tyres.4-)Power sources: local power available at the working sites(110V,220V,380V,415V ... single control solenoid valves to prevent the platform dropping if power failure. You can open the manual dropped valve to lower ... slipping, it is enough safe when it worksPower supply: Local power is available at the working sites(110V,220V,380V) , they ...