Rubber stopper 1.Certificate: ISO9001:2008 2.Material: NBR, NR, EPDM, Silicone, ... vegetable oilSizeWe can provide you with many different sizes of rubber stopper, according to your drawing or samplesMatetialNBR, NR ,EPDM ,SBR ,SR ... wide range of valves and pipes, rubber seals, auto rubber parts, industry rubber parts, auto rubber parts, rubber roller used in the wrapping machine, printing ...