NBR o ring 1,Material:NBR, silicon etc. 2,Size & Color:The same ... ,OEM is welcome. 4,MOQ:5000pcs. NBR/FKM /EPDM O Ring Details:1. Material: Silicone, rubber, FKM, NBR, and NBR + PVC ... with Best Service. 7. Packing: PP bay +Carton Box, other special packing according to your design and artwork. 8. Samples Lead ...