All of our machines are created of top quality elements, it contains 2T welding then milling built-in molding frame, Japanese 20CrMnTi CNC precision machining cam , 4-axis CNC machining clamp and aviation aluminum engraving and milling vacuum chamber, which make sure with the extensive lifestyle cycle of our machine. https://captainbookmark.com/story18788314/new-step-by-step-map-for-vacuum-packaging-machine