... ,hdpe 2.used in coal,mine,steel,cement,harbor heavy duty rubber rollers Introduction to our company:Products we can manufacture:Conveyor Roller Character ... in coal,mine,steel,cement,harbor,crusher heavy industryRoller FeatureLow vibration, low noiseReduced power consumption (to start and run the conveyor)Min ... Components:Our Factory Photos:Our products used in the world heavy duty rubber rollers