1 hole-puncturing machine 2 pipe punching machine 3 tube punching machine EMM50C automatic punch machine1. EMM punching line can punch circle, ... : Φ50×τ3~~~~~Φ16×τ11 3. The diameter of the puncturing pipe: Round pipe Φ16-----Φ150Quartet tube: 20×20-------75 ... punching, punching equidistant,360 ° rotating punching.10. TFT human-machine interface, Taiwan Tada Units control system, touch-screen settings, ...