... , LDPE, PA, PET, ALFunction: damproof, lightproof, air-barrierType: packaging bag, frozen food bags, vacuum bag, side seal/bottom sealing/ the envelope, zipper top ... bag, Aluminum foil bags, retort pouch, stand up pouch et.Printing: ... productsSGS.QS: ISO:9001:2000Output: 4000 ton/year tea packaging bag