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The specific criteria are not known.
But when you put it on, it's stuck on it, it's high above the ground, and you put some cement on it in the ground, and you wipe the seams, and it's over.
1. National standards for fireproof and anti-theft doors. >>>More
It generally includes the following seven details:
1) Door frame inspection: whether the door frame is installed firmly and well, whether the door frame and the wall are tightly sealed, and whether the door surface is cracked or damaged; >>>More
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?
1. Door sleeve installation:
1. The assembly connection of the door sleeve should be tight, smooth and without black seams; The fixed fittings should be locked; The diagonal of the door sleeve should be accurate, with a permissible tolerance of 1 mm within 2 meters and a permissible millimeter above 2 meters; >>>More
Normally, the standard size of the household security door is 2050 * 960, of which the most standard is 2050 * 860, in addition to 1970 * 960 1970 * 860 and other different sizes of the security door, the size of the security door is generally made according to the theoretical needs of the family, the maximum can be 2500 * 2500. >>>More