... inverter ,EPC,automatic tension 3.Laminating material: BOPP,PET,CPP,Aluminumn foil,paper QDF Series of Photoelectric Errocorrection High-speed ... high strength production, producing high-quality compound materials with high freshness preserving, and boiling & steaming resistance.1. Double frequency ... system for composite reel, constant temperature control Main Technical Variables ModelQDF-600QDF-800QDF ...