... kinds of rubber, Natural rubber, Styrene-butadiene rubber, Nitrile rubber, Butyl rubber,PU,EPDM,Neoprene, Silicone rubber, Fluorocarbon, Chlorohydrine rubber and Methacrylate rubber, etc.2 ... Tolerance0.1mm~0.3mm8. Available place:They are used for machinery, chemical industry, petroleum, automobile, coal,electric apparatus ... use).Hardness or duro.Tolerence.Color.Quantity dust cover for trucks