1,stong puncture resistance ability 2.excellent funtion of stopping water and oxygen 3.pack for PC board 4.printing available 1.Material:PET/AL/PE, PET/VMPET/CPP,PET/CPP, PET/VMPET/PE,PET/AL/NY/PE.2.Standup Aluminum foil zipper pouch available,Standup with zipper for easy opening and closing.3.Any printing required by customer are available4.Moisture proof,free standing,laminated material,strong, ...