Tubes manufactured from pressure vessel steel with very high demands on inside surface smoothness
Piston rods manufactured from finely ground and polished steel bars. The rod surface is either chrome plated or nitro-carburized to ensure high hardness, highest corrosion resistance and best possible wear resistance
Rod guides and gaskets are made from special, wear resistant materials
Spring cylinders are painted with a paint containing corrosion inhibitors
Load, deflection and speed tested, for proper function
