red rubber valve Material: silicone Hardness:Shore40,50,60,70,80, ... DescriptionMaterial: SiliconeHardness:Shore40,50,60,70,80,90Color: black,white,red,green,yellow,blue,brown,orangeAdvantageAging resistance, high/low temperature resistance ... , acid/alkali resistance, abrasion resistance etc.SizeAS568, P.G Series, ISO 361/1and Customized specificationThousands designs and exsiting molds are ...