... ensure a smooth movement, no crawling phenomenon. Production DetailsItem:Clear O RingsMaterial:NBR,HNBR,XNBR,EPDM,SIL,FKM(VITON),ACM,AEM ... :Welcome OEM (Drawing,Standard,Size,Your Sample)MOQ:30-10000 pcs according to the exact sizePayment:T/T,Paypal,Western Union ... packing or other packing according to your needs.Sample:FreeClear O Rings samplesAfter-Sales Service: 100% responsible for our products, ...