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2. Safety and security window film - Wikipedia

   en.wikipedia.org/.../Safety_and_security_window_film

   The film thickness is selected for level of protection desired and the dimensions of the glass pane. Manufacturers recommend 100 micrometer film (2 ply) for glass up to 3 mm (1/8 in) and 175 micrometer film for glass over 6 mm (1/4 in). These films can be applied for security applications, where a delay of forced entry is desired.

3. Window shutter hardware - Wikipedia

   en.wikipedia.org/wiki/Window_shutter_hardware

   Window shutter hardware, usually made of iron, are hinges and latches that attach to the shutter and a window frame (and in some cases directly attached to stone or brick). The hinges hold the shutter to the structure and allow the shutter to open and close over the window. The latches secure the shutter in the closed (over the window) position.

4. Film holder - Wikipedia

   en.wikipedia.org/wiki/Film_holder

   The classic film pack consisted of several "sheets" of film (actually much thinner than standard sheet film, as they were cut from large-format roll film, for economy and physical flexibility) taped together and wound in a series of S-bends around a metal frame. To "advance" the film, the user pulled a paper tab that protruded from the side of ...

5. Refrigerator magnet - Wikipedia

   en.wikipedia.org/wiki/Refrigerator_magnet

   A collection of refrigerator magnets A refrigerator magnet displaying a sexual assault hotline's telephone number. A refrigerator magnet or fridge magnet is a small magnet, often attached to an artistic or whimsical ornament, which may be used to post items such as shopping lists, Christmas cards, child art or reminders on a refrigerator door, or which simply serves as decoration.

6. Magnetic field viewing film - Wikipedia

   en.wikipedia.org/wiki/Magnetic_field_viewing_film

   Magnetic field viewing film is used to show stationary or (less often) slowly changing magnetic fields; it shows their location and direction. It is a translucent thin flexible sheet, coated with micro-capsules containing nickel flakes suspended in oil. [ 1 ]

7. Electromagnetic door holder - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_door_holder

   An electromagnetic door holder (electromagnetic door holder and release or hold-open device, sometimes informally called a mag hold open or electric doorstop) is a simple electromechanical mechanism which can be used to hold a fire door or security door open until given a signal to release.