1) Material of O-ring :Rubber ,silicone ,EPDM ,and so on .

 2) The sulfuration of products is very complete. It has excellent resistance to
extremes of temperature.

3) High intensity: severing by tearing is over 17MPa and the extension can reach.
over 300%.

4) The permanent compression deformation rate of finished products is less than 20%; the products have excellent resistance to standard oil and fuel oil.