Standard or nonstandard: standard Style: o ring Material: pu nbr ptfe viton, ptfe nbr pu viton o ring Place of origin: haining, china (mainland) Brand name: huajiao Model number: mq 001 Type: o ring Certification: iso sgs Product name: high quality hydraulic rubber o ring ptfe nbr pu viton o-ring Size: as568 standard Name: rubber o ring, o-ring, o ring, seal ring -