... 90 Color:green AS568, JPseries ItemHNBR o-ring green color for auto air-conditionDescriptionMaterial: siliconeShoreA50,60,70,80,90black,white,red,green, ... W270,ULAS568,P.G.etc.AdvantageGood Ozone resistance, aging resistance, high/low temperature resistance, acid/alkali resistance, weather resistance, abrasion ... packing: follow customers' requirement HNBR o-ring green color for auto air-condition