1. Low tooling charge. 2. Most competitive price. 3. Wear-proof o-ring cord. 4. Qualified supplier of some famous brands. Description of Aging-proof O-ring Cord with High Quality:1. Materials: can be NR o-ring cord, HNBR, Buna, FVMQ, MVQ, ACM, FLS, CR, SBR, SI, BR, IR, EPDM, IIR, butyl, PU, E/A, ECO, CSM, VITON, FKM, FPM, etc.2. Characteristics: good physical and chemical properties o-ring cord. ...