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Security seals can be split into two main groups: single-use and reusable. Single-use seals are typically made of plastic or metal, and the used material and production technology is the key to their security level. Reusable seals are usually electronic or mechanical rather than just made from plastic, and if purely plastic, only one part is ...
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Door breaching is a process used by military, police, or emergency services to force open closed or locked doors. A wide range of methods are available depending on ...
Fire-resistance rated door, with wire mesh glass vision panel Industrial grade fire door rated to hydrocarbon curve and blast resistance Double fire door immediately after 3-hour fire test inside a 4-hour rated Durasteel wall Double fire door after 3-hour fire test in a 4-hour Durasteel wall, during successful 45PSI (3.1 bar) hose stream test leading to a UL Listing [1]
A plug door is a door designed to seal itself by taking advantage of pressure difference on its two sides and is typically used on aircraft with cabin pressurization. The higher pressure on one side forces the usually wedge -shaped door into its socket to create a seal, which prevents it from being opened until the pressure is equalised on both ...
The outgoing head of Ohio's troubled teachers retirement system said that she is leaving the fund in strong fiscal condition, despite the turmoil at the top that her successor will inherit. In a ...
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