... -point paper boxes withpre-folding function, which will be used to pack goods onautomatic packaging flow line,,,,,,,,,,,,,,,,Optional scratching mechanism ... is used to grind the surface coated by varnish or laminated ... for NO.3 line ZH-YZ1060 High-speed Automatic Folder Gluer With Pre-folding Section(ZH-YZ650/1060 )