Conveyor parts roller 1.The life time: more than 30000 hours 2.The more relaxed payment term THE LONG LIFE Belt Conveyor Parts Roller Detailed conveyor ... Dia 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement industry, etc2 ... , electric static spraying painting, baked painting Besides we can manufacture the rollers and idlers according to ...