... :doubel inverter ,EPC,automatic tension 3.Laminating material: BOPP,PET,CPP,Aluminumn foil,paper QDF Series of Photoelectric ... materials such as BOPP, PET, CPP, luminum foil, and paper, 2-layer repetitious laminating, high strength production, producing ... unreeling, with automatic tension6. Reeling and unreeling by tumbling dual-station mechanism, realizing auto material change without machine halt. 7 ...