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• Do You Know O-Ring Seals?

  by qide xin July 5, 2022
  O-Rings Seal is a rubber ring with a circular cross-section and is called an O-ring because of its O-shaped cross-section. It is also known as an O-shaped circle. It began to appear in the mid-19th century when it was used as a sealing element for steam engine cylinders. It is one of the most w...