1.aluminium foil pack bag,it can be able to block the light and the ... . 2.use for food packaging 3.any size 1aluminium foil pack bag,it can be able to block the light and the ... as your request The major products we produce:1) Food bag for coffee,sauces,meat,frozen food,pet food,sea food ... ) Styles available:stand-up,zipped,heat-sealing,heat-cut,blown,back-sealing,3-sides sealing etc.