... Within 3days7 Packaging Detail: OPP+CARTON8 Payment Details: L/C,T/T,Western Union,Money Gram9 Delivery Details: FOB Port:ShenZhen; ( ... -aging, high temperature, water, etc. better Advantages for Silicone o rings:1. Excellent sealing2. odourless, tasteless and non-toxic3. ... has good flexible, and good stability Disadvantages for Silicone o rings:Not suitable for use with concentrated acids and bases ...