1) Shape memorial alloy dehumidification method
 2) Hard anti-theft body: 3.0mm steel panel used for body and 6mm steel panel for door,
3) Keeping dehumidification even if accidentally powered off 24hours.
 4) Anti-magnet and anti-static
 5) Anti-theft and safer design: Diameter over 20mm steel bolt, a changeable code lock
    with a set of visible lock and hidden lock.
 6) Adjustable shelves: it is convenient to divide interspace.
 7) Suitable for important file, documents, valuables and antique storing.