... ,rubber,plastic,nylon,hdpe 2.used in coal,mine,steel,cement,harbor industrial heavy duty rollers Introduction to our company:Products ... ,nylon,plastic,ceramic,hdpe, uhmw-peUsageUsed in coal,mine,steel,cement,harbor,crusher heavy industryRoller FeatureLow vibration, low noiseReduced power ... testsIdler Roller Components:Our Factory Photos:Our products used in the world industrial heavy duty rollers