Door (full name: security doors) security doors, both security and safety performance, 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 open the doors opened on a 615 mm2 of openings or open an opening of 38 mm2 in the locking point of 150 mm2 semicircle. And the use of anti-theft door locks must be qualified through the Ministry of Public Security testing center dedicated anti-theft door locks with anti-drilling capabilities. Fire security doors and fire into the door now, only Shanghai and Chengdu have local standard fire security doors, generally only called the fire into other parts of the door, that is to reach the National Fire Protection Class A or B fire doors standards (infill fire door core or rock wool material) Class A, Class B standards are generally based on the division of anti-burn time; while achieving tamper requirements in the following areas: 1. Taiyuan 2.0mm thick door security doors, front and back doors of thick steel plates were is 0.8mm, 2. metal lock with a tamper function Taiyuan security doors that lock both oblique tongue, but also spit square tongue, but not allowed to install earth lock. Shanxi stainless steel security doors | security doors | door industry strongly sung 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!