All of our machines are made of top quality elements, it incorporates 2T welding then milling built-in molding frame, Japanese 20CrMnTi CNC precision machining cam , four-axis CNC machining clamp and aviation aluminum engraving and milling vacuum chamber, which be sure in the extensive lifestyle cycle of our machine. https://www.linpack.com/news/how-vacuum-packaging-machine-helps-reduce-food-waste