All of our machines are created of top quality elements, it involves 2T welding then milling built-in molding body, Japanese 20CrMnTi CNC precision machining cam , four-axis CNC machining clamp and aviation aluminum engraving and milling vacuum chamber, which be sure of your extended lifetime cycle of our machine. https://www.linpack.com/news/step-into-the-future-with-advanced-vacuum-packaging-machine-technology