FKM/PTFE/NBR Quad-Ring Seal /X Ring - China Hydraulic Seals and X Ring
X-ring Sealing Ring X Quad Ring XR 0 - 99mm Material... | eBay
O-Ring vs.X-Ring and Patching Tires | Cycle World
10pcs A Lot Quad Ring 37.47*5.33 Mm X-ring As-325 Nbr70 X-ring Seals Idxcs 37.47 To 81.92 Nitrile Rubber Hydraulic Parts - Oil Seals & Other Seals - AliExpress