... about 9 years' experince in belt conveyors, conveyor idler rollers, conveyor rollers,conveyor idler rollers, roller frame, roller support design and supply ... as the buyer's demand.Details of belt conveyor impact idler rollers and spare parts1. Certificates: ISO,CE,BV.GB,ZB2 ... to design and production belt conveyors, conveyor idlers, conveyor rollers, idler rollers, and so on. Rubber ring impact ...