... 0.63m/s,0.8m/s,1.0m/s,1.25m/s,1.6m/s,2.0m/s,2.5m/s,3.15m/s,4.0m/s. About ... Or using an electronic roller as a driving device.)2. Roller parts (Driving rollers and returning rollers)3. ... . western union.3. Other ways: as the buyer's demand.Special service for belt conveyors1. Tools for fixing, ... other spare parts can free supplied.2. Special request: as the buyer's demand to design and produce.Guarantee ...