... testing 4.Can be customized 5.Professional Aluminum foil sealing membrane cosmetic tube sealing film Item Aluminum foil sealing membraneWidth 25MM 30MM 35MM etc ... the cup,jar sealing.For (PP,PET,PE,PS,PVC )Aluminum foil and glass etc,FeaturesGood tightness,easy peeling,we can adjust ... the tightness as the customized Aluminum foil sealing membrane cosmetic tube sealing film