... seal1. Applications: used in automobile, industrial, mechanical, medical, or special purpose. 2. Materials: HNBR, also HNBR, NBR, SI, EPDM, ACM,PU ... your request. 3. Certifications: pass ISO9001:2008, TS16949. 4. Materials meet RoHS directiveNSF, KTW, WRAS,etc. 5. Hardness: between 30 ... -90 shore A or IRHD. 6. Performance: heat resistant, weather proof, oil proof, ...