... 3.Chemical resistance 4.Size as customers' request Silicone ring can be, EPDM, natural rubber and other materials produced ... to prevent leakage, spillage, security utilityWe making lock ring which can be used in automotive industry.Rubber Parts, ... is available 9.Various sizes, colors(such as Clear, White, Red, Blue and so on)and material are optional. ... Part,Cake mold ,Silicone baking mold. lock ring