Suitable Fibers and Characteristics

Synthetic fibers, polyester-cotton, cotton; made from new raw and auxiliary materials, improving the oil and wear resistance of the rubber rings, with moderate hardness. The inner and outer layers of the rubber rings have suitable friction coefficients, and the inner layer adopts a diamond-pattern structure (patented) to eliminate the “jerking” phenomenon during operation, ensuring effective operation of both upper and lower rings. The rubber rings have high finishing strength, enhancing their service life.