... BS, metric o rings.Description of High Quality Standards O Ring for Chemical Resistant:1. Materials: can be ... standards o ring, HNBR, Buna, FVMQ, MVQ, ACM, FLS, CR, SBR, SI ... room. 10. We have thousands of current molds for o-rings. 11. Production lead time: 1 ... us for more details, and welcome to visiting our company sincerely. Best Regards! can be NR, SI, EPDM ...