Durable rubber oli seal ring 1.oilproof,waterproof 3,good tensility,wearing 3.Applied to European standard,ASTM Long time life silicone rubber oil seal ring1.Silione rubber sealing ring can easily withstand temperature range of -80 C to 300 C and are available in any section as desired by customer;2.Customerized color, shape,size,etc;3.Can produce seals according to international standard such as ...