EPDM small o rings ShoreA50,60,70,80,90 black, ... ,WRAS,TZW,W270,UL Lead time15days ItemEPDM small o ringsDescriptionMaterial: siliconeShoreA50,60,70,80,90black,white,red ... ,P.G.etc.AdvantageGood Ozone resistance, aging resistance, high/low temperature resistance, acid/alkali resistance, weather resistance, ... ,NP requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are available.Material usage is based on ...