The actuator body has been treated with had oxidation, the hardness is higher than normal one. Its durability extends the service life.
2. SS304 Screw
Actuator body screws are made of German Stainless steel. Fine workmanship, guaranteed quality.
3. Hard Anodizing Treatment for Piston
The piston in the cylinder block is also treated by hard oxidation, and the deepening of the plug groove further fixes the screw device, thus avoiding the displacement and loosening of the spring during use.