... ,70,80,90 black,white,red,green,yellow,blue KTW,W270,DVGW Lead time15days Itemsealing o shape ringDescriptionMaterial:NBR,EPDM,FKM ... ,80,90black,white,red,green,yellow,blueNSF,FDA,WRAS,TZW,W270,ULAS568,P.G.etc.AdvantageGood Ozone resistance, aging resistance, high ...