-
Anonymous users2024-01-23The security door is made of pure steel with a mezzanine. It is a non-standard door.
-
Anonymous users2024-01-22The distinction between standard and non-standard should be conventional and non-conventional production, such as function, geometry, etc.
Uh·· The country does not have a fireproof and burglar-proof door. The fire door cannot be locked in the first place, and the security door is not easy to open. Do you think there is such a door?
According to the results of the Chinese National Standard GB12955-2008 fire door heating test, if the heat insulation fire door test body meets the following conditions (1) to (5), it can be regarded as meeting the requirements of type A (heat resistance) fire door, and if it only meets the following conditions (1) to (4), it can be regarded as meeting the requirements of type B (not heat resistance) fire door. >>>More
The standard door is a general door made by the manufacturer, and the size of the door of the house you buy has a certain standard, that is, the ordinary door, and the non-standard door is the door that you want to make the door hole a little larger or smaller and then install it. You need to go and get a custom-made door. >>>More
Discerning the direction of the door is to discern it from outside the room. >>>More
The full name of the anti-theft door is the anti-theft security door, and the latest national standard "General Technical Conditions for Anti-theft Security Door" divides the anti-theft level of the anti-theft door into: A, B, C, D four levels. The surface material of grade D is thick, the number of locking points is 6 degrees, the anti-vandal opening time is 6min, and the door frame is represented by the mother and son D, and the door frame should be selected mm and mm according to the level of anti-theft safety B, C and D respectively. >>>More