... seal, household rubber seal, medical rubber seal, etc. Description of Wear Resistant NBR X-ring Seal: 1. Materials: NBR, also can ... , ACM, FLS, CR, SBR, SI, BR, IR, EPDM, IIR, butyl, PU, E/A, ECO, CSM, VITON, FKM, FPM, etc. 2. Characteristics ... : oil proof, aging resistant, heat resistant, wear resistant, chemical resistant, anti-corrosion, etc. 3. Hardness: 30~90 ...