... 3.High-impact resistance 4.Not easy to scale Non-metal roller: I. High wear resistance ... to a higher value. IV. Not easy to scale 1, there is good and non-sticky lubrication. ... mine, port terminals, power plants, steel mills, cement factories and coke plants, plant, fertilizer plant and ... mine, port terminals, power plants, steel mills, cement factories and coke plants, alkali plants, fertilizer plants ...