Automatic Secondary Packaging Line is consisted of one set of secondary packaging device and 1 or 2 sets automatic vertical packaging machine to form a whole set small bag pack in big bag packaging line. The packaging machine line realizes the function from small bag forming and packing to packing small bag into woven bag and sewing the bag. Finishing all the work in one process line, the machine unit greatly help factory to cut down the basic cost and also increase the working efficiency. This kind of bag in bag packing type is greatly adopted in food, seeds, fertilizer & chemical products area and become the first choice of many big companies. How Does Bag in Bag Packing Machine Working ? More,http://www.sg-pack.com/article_list_59.html https://forum.heatinghelp.com/discussion/168111/what-is-a-vffs-vertical-form-fill-seal-packing-machine/p1?new=1 https://onmogul.herokuapp.com/stories/what-is-automatic-secondary-packaging-machine https://forum.bulletproof.com/discussion/21538/what-is-charcoal-bagging-packaging-machine/p1?new=1