| 摘要 |
<p>The system is based on propelling a mixture of two expanded-polyurethane components previously contained in pressurized reservoirs towards the security enclosure or environment where articles and/or securities to be protected against theft are located, such that said propulsion of the dual-component expanded polyurethane covers and conceals the articles and/or securities, the latter then being inaccessible to criminals or intruders who might have gained unauthorized access to the security enclosure or environment of the articles and/or securities.</p> |
