... pneumatic and automobiles.Hardness: Shore 50-75Color: black,white,red,green,yellow,blue or follow the color codeAdvantageGood Ozone resistance ... , voltage resistance and insulating resistance etc.SizeAS568, P.G Series, ISO 361/1and Customized specificationCertificationISO9001-2008, TS16949, NSF, WRAS ... packing: follow customers' requirementVarious sizes & colors as following: red silicone rubber gasket