... ISO-9001:2000 and ISO/TS16949. Specifications 1.Material:NBR1. Available material: NBR, NR, HNBR, EPDM, ACM, MVQ, FKM, PU, etc ... .Wide range of material is available. 2. Used in many kinds of situation for static seal.3. All ... requirements.6. Available in various sizes and colors.7. State standard and non-state standard sizes available.8. Over 2000 different size o ring in our stock ...