... ok 3.Chemical resistance 4.Size as customers' request Silicone ring can be, EPDM, natural rubber and other materials produced, the ... , spillage, security utilityWe making lock ring which can be used in automotive industry.Rubber Parts,Auto Parts,Plastic parts,siliconemasking,rubber molded ... ,silicon rubber,Automotive Part,Cake mold ,Silicone baking mold. lock ring