... tea packaging bag Product description ProductdetailsMaterialOPP,CPP, PE, PET, VMPET, VMCPP, PA, AL, PVC, matte OPP, pearlised OPP, etc. Laminated layer ... , considerate service. Bags are made from multi-layers plastic laminated materials, such as PP,PE,OPP/PET/PA/AL. ... And the bag can be plastic- plastic laminated packing bags , plastic -aluminum laminated packing bags , PE or PET ...