The current anti-theft security door uneven and varied, some businesses Again grocery store, operating a variety of security doors. How should consumers identify qualified security doors buy it? A summary of the following INDUSTRIES: 1 rating criteria: security door security level can be divided into Class A, Class B and Class C, Class D, Class-theft performance of which the highest, Class B and Class C Second, the minimum D grade level. We have seen in the building materials market mostly Class C, D grade security doors, more suitable for general home use. 2, inspection plate: state regulations, security doors of the plate thickness to reach 1 mm, but some companies in order to reduce costs, some only 0.4 mm steel plate thin on meaningless theft. According to the security door business introduction, consumers test plate, you can push the doors in steel, if the plate is pressed down, show off, but the quality of the security door. 3, check the next step: a qualified stainless steel security door step, but some small workshop in order to reduce costs, I use stainless steel iron. When I visited Nanchang new multi-security doors, the boss introduces an identification tips, will be placed under the foot on the magnet, the magnet suck if it is difficult to get open security doors sales, showed lower tread material failure. 4, good lock only locks points: qualified security door locks generally use three position lock, lock not only locks up and down the bar can be inserted locked door to be fixed. Some businesses use more often locked to attract consumers, in fact, a good lock is not the point, the better anti-theft security door lock, the lock cylinder is not theft, more locking points are useless. A Run Industry and Trade wants consumers to use up the security doors wholesale, buy genuine products of these methods. Anti-theft door lock is the most important component supply security doors, security lock performance has a direct relationship to the safety door locks look at the most important is to look at the quality of the production house locks, fame when purchasing security doors, and products subject to the certification authority designated by the State. Anti-theft lock should have anti-drilling, anti-sawing, tamper, anti-pull, anti-shock, anti-technology open function. Door locks used on the lock into a single point and multi-point locks, the so-called single-point lock means locks lock by lock themselves point locking door. Multi-point locking means except itself, while driving the secondary lock, forming a plurality of locking points, and distributed in the door frame around enhanced tamper performance. Security doors are the first check of your home, be sure to choose high-quality products, selection of high-quality security doors on to a Run Industry and Trade, the price is reasonable. Supply security doors, security doors, a proverbial fountain provided by Zhejiang Industry and Trade Co. A Run. Zhejiang A Run Co. (www.zjyrgm.com) strong, credible, Jinhua in Zhejiang security door industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead a Run Industry and Trade into the brilliant and you work for a better future!