... Time: 10~15days 3.Materials: All 4.Offer OEM silicone gasket ring Item#O Ring ROR-S0007Material NBR, HNBR, NBQ, FKM ... , CR, PDFE, EPDM, SILICONE . ect.ColorAvailable in any color, according to customers’ requirementsWorking ... : Capability of our company: NBR, HNBR, NBQ, FKM, CR, PDFE, EPDM, silicone gasket ring