How to choose a safe security door

The national standard strictly stipulates that the inner upper side of the door frame of the anti-theft door must be printed with the corresponding grade words of "A, B, C, D", and some businesses use steel doors to pretend to be anti-theft doors. Anti-theft doors: Now the sturdiness of the door leaf of the big brand can be used with confidence. But the security door is still recommended to look at Wang Li, now many anti-theft doors are made of a variety of styles, to attract customers with the appearance, but the locks are almost the same. >>>More

When purchasing these anti-theft doors, we should pay attention to: 1. The first choice is to choose enterprises and dealer stores with relatively large scale, good reputation, and standardized sales and service, and should also pay attention to product identification, such as the mark "FAM" of the anti-theft security door, enterprise name, trademark, specification model, implementation standards, etc. 2. The thickness of the steel plate of the door frame of the anti-theft security door should be more than 2mm, and the thickness of the door body is generally more than 20mm, and there are several stiffeners in the interlayer of the door body, and it is filled with foaming agent, rock wool, honeycomb cardboard and other fillers, so that the front and rear panels of the door body are organically connected together to enhance the overall strength of the door body. >>>More

The key to choosing an automoatic door

In sturdy, DU has three points for reference: zhi1, the material should be thick. The thickness of the pipe plate is generally not less than. >>>More

Panpan, hehe.

However, there is no security door. >>>More

Of course, you get what you pay for, and you must pay a price for being cheap.