All of our machines are made of high quality supplies, it includes 2T welding then milling integrated molding frame, Japanese 20CrMnTi CNC precision machining cam , 4-axis CNC machining clamp and aviation aluminum engraving and milling vacuum chamber, which ensure of your extensive everyday living cycle of our machine. https://www.linpack.com/news/step-into-the-future-with-advanced-vacuum-packaging-machine-technology