... heavy duty rubber rollers 1.material:steel,rubber,plastic,nylon,hdpe 2.used in coal,mine,steel,cement,harbor heavy duty rubber rollers ... ,Friction,Tapered,Guide,Spiral,Comb and so onMaterialCarbon steel, stainless steel,nylon,plastic,ceramic,hdpe, uhmw-peUsageUsed in coal ... ,mine,steel,cement,harbor,crusher heavy industryRoller FeatureLow vibration, low ...