The o-shaped sealing ring is suitable for installation on a variety of industrial equipment, and has a sealing effect under the conditions of stationary or fitness exercise in the required temperature, working pressure, and different liquid and vapor media. There are many applications in CNC lathes, ships, trolleys, aerospace machinery and equipment, metallurgical machinery, machinery manufacturing, engineering machinery and equipment, construction machinery, mining equipment, petroleum machinery, plastic machinery and equipment, agricultural machinery, and various instruments and equipment There are many types of hermetic components.