... 3)heat resisting 4)fast delivery Custom NR rubber seal ring:1.Product NameNR rubber seal ring2.Country of OriginChina ... chemical resistance B. High temperature resistance C. Excellent weather resistance D. Anti-aging, anti-radiation, good flexibility, good elasticity E. ... , oil seals, hydraulic seals, rubber sheet, rubber mat, O-ring, auto and motorcycle parts, oil drilling and mining rubber parts ...