... process flow chartMill roll stand,- Automatic print unit - Automatic paper web guide - Automatic paper unwind, - Auxiliary web draw system - ,Perforation - ... - Platform for storing.C: Features of our full-automatic paper bag production line:Flat & glued bottom with filling valve; ... chemicals, foods, tea, etc.4-color automatic printing2~4 paper layers, with one extra PE/PP film available35~50 million ...