Photoelectric- and computer-controlled machines are used to sealbag bottoms and make packaging bags from original color and printedPP, PE and PVC plastic films.These machines have the functions of photoelectric tracking, automaticfeeding, counting, bottom sealing and cut-off. Photoelectric-controlled models can be used to make original or single- color packaging bags; with computer-controlled models used for productionof original color or multi-color printed packaging bags.outer Packing:Packed in wooden cases