1. Advanced and reliable sealing system. Adopts imported sealing brand, which has the characteristics of high-speed wear resistance and long service life. 2. The cylinder barrel is made of high-strength cold-drawn material, and the welding structure is reliable, which improves the overall strength of the cylinder. 3. The piston rod adopts an advanced electroplating process and with salt spray test grade 9/96 hours, to enhance the anti-corrosion and wear-resisting performance. 4. Burst pressure test up to 72.5MPa. 5. The material of front and rear bearings is POLYGON fiber composite. 6. The cylinder adopts multiple anti-loosening structures to ensure the reliable operation of each component without falling off.