... 1.silicone rubber material 2.any shaped ring 3.seal ring for chemical 4.customized size Item Silicone Rubber Car ... Gas Seal RingSize To be customized Describe Offer Silicone sealing rings OEM ... ,silly bands,bakeware,silicone moulding,key chain Household appliance products: seal rings ,o-rings etc,rubber parts and hard Rubber seals ...