In 2008, the company developed and repeatedly tested the rubber seal series used in gas springs with the relevant authority of the rubber industry. It has been tested and certified by the national product and technical supervision department and has high quality, physical and chemical properties, and no corrosion. The sealing performance is safe and reliable, especially the wear resistance and fatigue resistance are double that of the current general manufacturers, and the lubrication performance of the product is unique. The pneumatic rod assembled by our company's seals will make the piston rod stretch and compress under the traction of the pneumatic rod itself.