Feature: 1. There is an inflation port at the bottom of the nitrogen gas spring cylinder, which can be used for micro pipe connection system. 2. There is standard C shape notch in the cylinder upper, together with the bottom screw hole, can provide various installation possibilities. 3. The end force of the gas spring is 2800N, the initial force is 1700N, and the stroke is long, which is practical. 4. After the special process of fine processing, the hardness is high, and the surface roughness reaches about Ra0.02um. 5. Made of alloy material and adopts integral cutting and forming process, which is safer and more reliable than pipe welding. Specification: Item Type: Nitrogen Gas Spring Material: Alloy Purpose: Die compression nitrogen cylinder Cylinder Diameter: Approx. 19mm / 0.7in Plunger Diameter: Approx. 11mm / 0.4in. Package List: 1 x Nitrogen Gas Spring1 x Storage Box Note: 1. Do not use the nitrogen gas spring plunger rod for fixing, and the threaded hole at the end of the piston rod cannot be used as a lifting hole for lifting.2. Do not modify the following aspects of the nitrogen gas spring:(1)Drill holes on the cylinder block of the nitrogen gas spring, the sealing ring, etc.(2)The piston rod is shortened in order to reduce the stroke(3)Do not perform other processing on the nitrogen gas spring and its accessories3. Do not use nitrogen gas springs for purposes outside the scope of product catalog specifications.4. Do not allow the ammonia gas spring to return freely after being compressed, as this will cause damage to the internal structure.