According to practical requirements and more demand for packing bags, to better let the consumer see product, we make the innovaion oncomposite process and open the window on non-composite base of the prining surface, which show our product appear in font of the customerto achieve better products show efect. This machine equipped with double-row punching window, automatic exhaust function, automatictension design. new function: embossing stamping, make design more stereoscopic and elegant.