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LEYBOLD OPTICS increases the shelf-life of food 提高了包装食品的保质期Transparent barrier (AIOx) coating for BOPP and PET packaging film 氧化铝透明镀膜:METALUX*)Al metalizing of BOPP,PET and CPP packaging:BOPP,PET和CPP膜的真空镀铝 MET-M/PRO-M series系列