... and non-standard o-ring 2. all colors and materials are available 3.high quality 4.best price and service Product InformationNameRubber seal,Rubber O-Ring ,oil seal, Rubber ... GasketMaterialEPDM,NBR,SBR,CR,NR,SIL,VT,HNBR,PU,FSIL.etcPerformance1.Good sealing and ... air transportation; sea transportationPortXiamen Rubber O-ring