HNBR o-ring green color for auto air-condition ShoreA60,70,80,90 Color:green AS568, JPseries ItemHNBR ... white,red,green,yellow,blueNSF,FDA,WRAS,TZW,W270,ULAS568,P.G.etc.AdvantageGood Ozone resistance, aging resistance, high/low ... , abrasion resistance, voltage resistance and insulating resistance etc.SizeAS568, P.G Series, ISO 361/1and Customized specificationCertificationISO9001-2008, TS16949, ...