... . 4. AS568, BS, JIS, metric sizes all available. Description of Good Performance O-ring Cord PAHS Approved:1. Materials: can be ... , E/A, ECO, CSM, VITON, FKM, FPM, etc.2. Characteristics: good physical and chemical properties o-ring cord. 3. Hardness: 30 ... thousands of current molds for o-rings. 11. Production lead time: 1~2 weeks. 12. Small order quantity is welcomed. Please ...