... ,70,80,90 black,white,red,green,yellow,blue KTW,W270,DVGW Lead time15days Itemsealing o shape ringDescriptionMaterial:NBR,EPDM ... 70,80,90black,white,red,green,yellow,blueNSF,FDA,WRAS,TZW,W270,ULAS568,P.G.etc.AdvantageGood Ozone resistance, aging ... ISO 361/1and Customized specificationCertificationISO9001-2008, TS16949, NSF, WRAS, UL, TZW, ACS, FDAMaterialAll raw material meet European REACH, ROHS and ...