silicone seal 1.soft,flexible 2.nontoxic,won't bring in impurities 3.heat resistant 4,Factory direct sales Silicone seal food grade silicone sealMaterial100% virgin and Eco- friendly rubberSizeTo be customizedDescribeDurable and tensile ,heat-resisting and cold-resisting(-60 degree to 180 degree) Non-toxic , more flexible,can be oil proof,water proof,air proof,shock proof as requested ! Offer OEM ...