... : back seam construction, tubular, gusset selective 5) Printing: top 8-color printing 6) Other: anti-slip and anti-UV types available ... are: various valve bags, plastic bags (heavy-duty packing bags), color film bags, paper-plastic bags, container bags, etc. 60% ... production line, two drawbenches, eighteen circular looms, two six-color printing machines, one coating machine, one bag-making machine and ...