Aluminum Foil Anti-static Bag Function: Moisture Barrier & Vacuum Bag Constructure: PET ... PET/AL/PA/PEProtect expensive electronics from moisture and static damage;In flat open top style ,customized printing is ... large machine ,electronics ,telecommunicationperformance :resistance of static and moisture,Superior puncuture resistaance,anti-static inner and out layer ,surface resistance. PerformanceTest ...