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All kinds of standard and dimension Silicon O-ring/medical silicone seal with highly quality competitive price speedy delivery b Silicon O-ring 1).Material;made of 100% silicone rubber 2).all color and sizes are available 3).We can not only supply standard o-ring like AS-568,JIS2401,P&G,DIN3771 and GB3452.1- 92,but also supply various of non-standard specifications 4) Abrasion resistant, high/low temperature resistant ,oil resistant,water proof 5).all size and color is available 6)Silicon O-ring has passed SGS/FDA/PAHS/ROHS/REACH. 7)ODM and OEM are welcome. We excel in rubber seals ring products in china. If you are interested in our products, please contact us without any hesitation.