... Anti-aging, good flexibility e)Food grade Name Steam Port Seal RingMaterial SiliconeCertificationISO 9001:2008 ISO 14001:2004Passd ... ) Ozone and chemical resistance b) High temperature resistance ,Steam resistancec) Excellent weather resistance d) Anti-aging, good flexibility ... for high temperature, steam environment, such as: electric kettles, rice cookers, water dispensers, hot pot, and other high ...