All of our machines are made of top quality elements, it contains 2T welding then milling integrated molding body, Japanese 20CrMnTi CNC precision machining cam , 4-axis CNC machining clamp and aviation aluminum engraving and milling vacuum chamber, which be sure with the extended life cycle of our machine. https://www.linpack.com/news/how-vacuum-packaging-machines-are-transforming-food-preservation