... ,hdpe 2.used in coal,mine,steel,cement,harbor coal mine rubber conveyor belt idler roller Introduction to our company:Products we can ... steel, stainless steel,nylon,plastic,ceramic,hdpe, uhmw-peUsageUsed in coal,mine,steel,cement,harbor,crusher heavy industryRoller FeatureLow vibration, low ... Components:Our Factory Photos:Our products used in the world coal mine rubber conveyor belt idler roller