... , FPM & VITON o-ring with higher quality and comp FKM Rubber Seal Strip Features,Application widely used in faucet,toilets,fittings ... ,pipes,showers and other industry accessories,and auto parts for sealing MaterialFKM,VITON Hardness55-90 Shore-A or IRHD Color all ... ,NSF,KTW,WRAS Our factory is a professional manufacturer of rubber products ,you can get much more information from our websit ...