Use of stainless steel with the economic development becomes more widespread security door manufacturer, a lot of people think is never rusty steel security door fittings, in fact, good corrosion resistance of stainless steel. The reason is that the surface layer of the passivation film, in nature it is a more stable form of oxides. Stainless steel surface and various acids attached bleach, rinse immediately with water, and then ammonia solution or neutral carbonated soda water immersion, neutral detergent or washing with warm water. Wing 康圣昌 Trade and Industry has high-quality products, the most attentive service, if you need, please feel free to contact us, all the staff I sincerely look forward to your arrival. St. Chang Industry and Trade is a professional burglar locks chosen by the relevant departments detection through locks and plus with multi point locking. Door flower meticulous workmanship, solid stable structure, good surface gloss and consistent coloring. Interior doors have a filling material, void-free sound security door knocking ten brands, when the plate is pressed a little harder, the surface without sinking situation. Doors door surface is smooth, uniform color, the interface between the sheet anyway no significant irregularities. Security door fittings, St. Chang Industry and Trade Care (certified), Jiangsu safety gate is provided by St. 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.