Looks pretty much the same, the price is a difference of six or seven hundred dollars, many people in the purchase of anti-theft door is also a fog to see the flowers, confused. Today’s reporter’s unannounced visit to a large anti-theft door market in Jinan City revealed a number of doorways for the general public. Recently, Feng teacher in a university in the country spent 680 yuan to install a new anti-theft door, the door lock on the first 6 days to a problem, she returned after anger and spent 1280 yuan to buy a famous brand of security doors. Buying the door twice, Teacher Feng bought a fog. She told reporters that for the first time, the anti-theft door purchased for 680 yuan looked very luxurious. As a result, the family was trapped at home because of problems with the locks. But she returned this security door to a famous brand anti-theft door store to see a look and she retired that almost a security door, the price was as high as 1280 yuan. Although he was puzzled, Teacher Feng bought the security door. It is understood that some street iron gates that are casually welded can be sold as self-proclaimed "security doors." Consumers often pay attention to whether the style is beautiful when they are buying, or if they visually check the door visually. At most, knock on the door with a hand and try the door lock. “The appearance of the two doors looks similar. One sells 1,000 yuan and the other can be bought for around 300 yuan. The key lies in the difference in the production materials.†said one dealer: “The price of some security doors is low. It is because of the use of unqualified materials. Some of the doors are filled with cardboard! According to a person in the industry of a security door market, the quality of the anti-theft door is not very different. For example, he said, for example, the thickness of the steel plate, some say 1 mm, and some say 0.8 mm, in the end how thick, ordinary consumers are difficult to distinguish. The filling between the two steel plates is also different: the filling used for a good security door is generally a fireproof rock wool; most of the security doors generally use honeycomb paper or foam paper. Even the most important door locks vary in quality. Appearance of similar door lock prices can vary by hundreds of dollars.
Teach you how to choose a good door
First, the steel plate thickness of a qualified anti-theft security door frame should be more than 2 mm, and the thickness of the steel plate generally used in the front and rear panels of a door leaf is between 0.8 mm and 1 mm, and the thickness of the door body is generally more than 20 mm. Here's a small trick: remove the cat's eyes, door bells, or lock handles. The thickness of the door's steel plate and the reinforcing steel bars give you an overview. In addition, asbestos and other materials with fire-retardant, heat-insulating and sound-insulating functions are preferred as filling materials. Second, qualified anti-theft locks must be certified by a national authorized authority. Anti-theft door locks are divided into single-point locks and multi-point locks, multi-point locks can enhance the anti-mite performance. Qualified security doors generally use three-position locks. There should be a steel plate with a thickness of more than 3mm at the lock on the security door. Thirdly, manufacturers with formal qualifications and services have certificates such as production registration approval certificates, quality verification certificates, and inspection reports. The quality is generally guaranteed, and most of them come in free installation and warranty for consumers.
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