To want to be a good product, we should pay attention to their production processes, then the following St. Chang Industry and Trade to introduce you to the production process of stainless steel doors of buildings: a manufacturing door: door panel molding cutting, bending process, stamping 2, the washing surface; the stainless steel plate forming and welding sequence: First, an aqueous solution of a degreasing agent doorframe soak 2-30 minutes; then, will become clear water from 1 to 10 minutes; 3, spray primer: First, the door oven and heated to 50 to 200 degrees Celsius, then start spraying primer Stainless steel building door manufacturers, the frame and the primer is sprayed into the oven heated to 50-200 degrees Celsius; Yongkang St. Chang Industry and Trade specializing in the design and production of stainless steel building door products, using high-quality Luoyang copper material, the surface after chemical treatment of high-tech industry and trade ShengChang remind you in the purchase of the security door when the following points: (5) Lock check: qualified security door generally used by the public security departments detection of qualified theft special locks, meanwhile, should be more than 3.0mm thickness steel plate in place to protect the lock. Anti-theft locks for now many are multi-faceted locks, the advantage is not only locked door, and down the bar can be inserted into the lock Stainless steel building door fittings, door to be fixed. Tamper greatly increased performance of the door. Ministry of Public Security issued a "GA / T73-94 mechanical anti-theft lock" clearly states, rogue anti-theft locks into ordinary mechanical protection level and senior-level stainless steel building door handles, to Class A and Class B to represent. Class A refers to the anti-lock time of less than 15 minutes to open the destructive, anti-technical open lock time of less than one minute, Class B refers to the anti-lock time of less than 30 minutes to open the destructive, anti-technical open a lot of time in five minutes (anti-lock technology to open refers to the resistance of professional and technical personnel operating practices to use special tools to open locks capacity) of the lock. And under the same circumstances, the safety performance of Class B theft lock is five times A-level locking. Yongkang St. Chang Industry and Trade Co., Ltd. Security Door exquisite craft, reliable quality, competitive price, welcome customers and friends to buy. Stainless steel building door price | St. Chang Industry and Trade prestigious | Jiangsu Stainless steel building door, Ltd. provided by Yongkang St. Chang Industry and Trade. Yongkang St. Chang Ltd. (www.shengchangco.com/about/) Zhejiang Jinhua, household goods inventory leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Trade and Industry Leadership at St. Chang staff warmly welcome all inquiries negotiations to create ShengChang better future for industry and trade.