Door (full name: security doors), both security and safety performance security doors, you can use different materials, but must meet the standards of qualified testing and receive security products production permit. Accordance with the "anti-theft security door general technical conditions" provides qualified security door within 15 minutes use chisels, screwdrivers, crowbars and other common hand tools and power tools and other portable hand drill or unable to pry the doors opened on a 615 mm2 of opening, or open an opening of 38 mm2 in the locking point 150 mm2 semicircle. And the use of anti-theft door locks must be through the Ministry of Public Security Testing Center of qualified security door locks with anti-drilling special functions. Sheng strong security door security door industry: ① anti-theft lock security door lock is the most important component, anti-theft lock performance is directly related to the security of the door, there are mechanical locks and electronic locks security doors in general use. When the anti-theft locks to choose from, to pay attention to the product to be specified through the national certification authority. 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 building security doors except itself, while driving the secondary lock, forming a plurality of locking points, and the distribution of four weeks at the door security door, enhanced tamper performance. Anti-theft lock bolt (bolt) security door using its extended length, A-class security doors extended length should not be less than 14 mm, Class B should be not less than 20 mm. Anti-theft lock housings typically use no less than 2 mm thick steel plate or a material with a certain strength, folding, opening a whole should weld or stamping. In the main bolt (bolt) gear lock key parts of the body corresponds with proper anti-drilling protection or anti-drill steel plate covers. ② hinge hinge is part wood door security doors and door frames interconnected, play a role in supporting the main door, but should have a certain anti-theft feature. Currently hinge Door is generally used with built-in and external hinges, built-in hinge applicable to outer door, external hinges applicable to open the door, to the inner door using an external hinge, which hinge shaft diameter is generally greater than 12 mm, if the hinge rolled steel plate edges which must be welded closed. Door price, Linfen security doors, door-Sheng industry by Wanbailin district-Sheng distribution of stainless steel products. Wanbailin district-Sheng Stainless Steel Products Distribution Division (www.sxqsmy.net) strong, credible, in Taiyuan, Shanxi metal door industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the strong Sheng door industry and you work into the brilliant, for a better future!