There are not many small manufacturers making security doors on the market. Because of the high production costs and strict process requirements, there are still indispensable manufacturers of shady fish. Here are three signs to remind consumers to buy security doors: security door code ( FAM), anti-theft security levels, and corporate custom features. Among them, the anti-theft security level mark is permanently fixed at the upper corner of the inner hinge, and is located at a height of about 160 cm from the ground.
Compared with the old standard, the new standard strictly regulates the security level of security doors, the thickness of door frames, and the number of lock points. The new national standard classifies the security doors into four security levels A, B, C, and D according to four types of indicators, such as the time to prevent damage, the thickness of steel plates, and the number of lock points. The codes are J, Y, B, and D, respectively. Grade A is the highest, decreasing in turn, and the four grades of anti-vandalism have obvious differences because of different levels (Class A is not less than 30 minutes, Class B is not less than 15 minutes, Class C is not less than 10 minutes, D Level not less than 6 minutes).
At the same time, the new standard has also added content that can help consumers identify the authenticity of security doors. Any anti-theft door produced by regular manufacturers will have a “security level imprint†in the upper left corner of the door, if there is no such thing as a door on the door. The imprint is not a real security door. It has changed many products on the market to play "rubbing the ball," and individual sales of commercial "protective doors" and "steel doors" posing as security door sales help consumers identify genuine and fake security doors.
Compared with security doors, many metal door frames, doors and locks around the lack of reinforcing plate, thin plate thickness, poor lock quality, safety performance is not guaranteed. In addition, the new national standards for anti-theft doors not only stipulate the material thickness of the door frame, but also increase the material thickness of the door panel, and also provide the minimum number of lock points for the security door and the effective length of the main bolt extension. These parameters are very easy to detect for consumers, and it is more convenient for consumers to choose security door products.
How to buy security doors, buy security doors should pay attention to the following items
1. The material should be thick. The thickness of the pipe plate is generally not less than 1.2 mm. The surface finish of the steel pipe body is high in smoothness, no rough blisters, and the thick steel pipes are sounded with good sound quality and a stable feel.
2. The structure should be reasonable. The anti-theft door with the door frame is more secure and easy to install in the summer. The distance between the gate fence steel pipe is not more than 6 cm (the best hand does not come in).
3. The lock should use the anti-theft lock with multi-insurance function. The indoor and outdoor locks can be opened or locked. The iron protection is installed on the door to protect the keyless person.
4. After installing the anti-theft door, check whether the keys, insurance policies, invoices, after-sales orders, and other accessories and materials are the same as those provided by the anti-theft door manufacturer.
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