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 of the program quality stainless steel composite doors, stamping and welding sequence stainless steel plate; 2, washing of the surface: 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 oven door frame heated to 50-200 degrees Celsius wholesale stainless steel composite door, then start spraying primer, the primer is sprayed into the oven door and then heated to 50-200 degrees Celsius; Yongkang St. Chang Industry and Trade is a professional manufacturer of stainless steel building door series, use of high quality materials Luoyang copper surface after chemical treatment of high-tech industry and trade ShengChang remind you in the purchase of the security door when the following points: (1) Consumers should be based on the size of the bedroom doorway, opening direction, color patterns, such as the actual requirements to select the appropriate security doors. (2) anti-theft security door damage function is the most important function of stainless steel composite door fittings, at the time of purchase may be required to produce relevant vendor compliance certification testing, product quality should meet the technical requirements of national standards. Yongkang St. Chang Industry and Trade Co., Ltd. Security Door exquisite craft, reliable quality, competitive price, welcome customers and friends to buy. High quality stainless steel composite door, Trade and Industry prestigious St. Chang, Fujian stainless steel composite door by Sheng-chang Ltd. Yongkang. 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.