... 1,000pcs 4)OEM & ODM available. silicone o ring Item#O-Ring SOR-M0005MaterialNBR, HNBR, NBQ, FKM, CR, PDFE, ... for outside packing) or customizedCertification dataISO9001(“SGS” of the year 2000 edition), FDA, LFGB, ROHSProduct Details:1 ... .3) MOQ: Depends on size and weight of the unit product.4) Delivery Time: 10~15 days5) ... Capacity of our company: Colored Silicone O Ring With High Quality Approval