... . Main materialNitrile rubber(NBR), also can use Natural rubber,Styrene-butadiene 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, industrial mining and ...