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Pridružen/-a: 10.01. 2017, 10:56
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 Objavljeno: 26 Jun 2018 11:50 Naslov sporočila: Class A Fire Door and Class B Fire Door |
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| <p>Material Fire doors are mainly composed of four types of door closers, door panel materials, door frame materials, and fireproof panels. Class A fire doors are all made of good quality 08 materials. Its service <a href="http://markdownmotorsinc.com/distributor/1945-discount-tiles-Norrk.html">discount tiles Norrk</a> life is generally between 5 and 8 years. Its door iron material is relatively thick and is much heavier than the same thickness class B fire door.</p> <p>The difference between Class A and Type B fire doors - Class A fire doors are usually used for some of the more important places, such as private rooms, power distribution rooms and so on. Class B fire doors are generally used in aisles and<a href="http://markdownmotorsinc.com/distributor/1944-solid-composite-post-decking.html">solid composite post decking</a> other places. Fire Door Selection Skills Fire Door Selection Skills - Appearance When choosing a fire door, it is preferred to check its appearance. For a better fire door, its steel welding is very firm, and the solder spot spread is more uniform.</p> <p> Its appearance is sprayed with flat lubrication, and the product's mark and quality inspection mark are marked in the specified position. Fire door selection techniques - the dimensions of the digitally qualified fire doors are all less than or equal to the dimensions of the sample drawing, and their thickness is greater than or equal to the thickness of the sample door, and its The width of the door frame side wall is also greater than or equal to the door frame side wall width of <a href="http://markdownmotorsinc.com/distributor/1943-best-material-of-second-floor-balcony.html">best material of second floor balcony</a> the sample.</p> |
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