Stainless steel building door stainless Tongmen major security role to play, in fact, not stainless steel doors of buildings play a security role, really play a security role that anti-theft lock. In fact, the relationship between anti-theft locks and stainless steel door is important, if not a good anti-theft lock stainless steel copper door fittings, then even the best stainless steel door will not play a very good security role. Yongkang St. Chang Co. in stainless steel anti-theft window manufacturing and sales. Our company has strong technical strength, superb production technology, a sound management system and quality testing. St. Chang Industry and Trade to introduce you to the stainless steel security doors must meet the following can be considered a qualified security door: a qualified stainless steel security door at the front door lock is not installed, you can see a protective plate on the door hole, Protective plate thickness greater than 3mm, while the poor are unprotected stainless steel security door; (2) there should be a qualified permanent stainless steel security door stainless steel anti-theft security level flag Tongmen handle, into A, B, C, D four levels, the sign permanently affixed to the inside of the gravure form the hinge side of the door frame Tongmen wholesale stainless steel angle, height from the ground 1600mm, 100mm position; poor quality stainless steel security doors is none of these signs; Yongkang St. Chang Industry and Trade specializing in the design and production of stainless steel Door series, using high-quality materials Luoyang copper surface after the high-tech chemical treatment. Stainless steel bronze doors of St. Chang _ Wholesale Trade and Industry quality (certified) _ Jiangsu stainless Tongmen 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.