... time: more than 30000 hours 2.The more relaxed payment term The popular selling Conveyor Roller Detailed conveyor roller idler ... 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement ... spraying painting, baked paintingBesides we can manufacture the rollers and idlers according to the buyers' requirment. The popular selling conveyor roller