Shanghai Xunzhong Industry Co., Ltd. Located in Shanghai, China. Established in 2011. Our company is a professional provider of special door of wide applications. We provides a series of products covering steel fire door, fire window, hospital door, security door building door, explosion door and industry door, etc. Our products are widely reputated in China, by offering market with superb quality products, excellent after sale services. Together with more than 120000 square meters building area, and registration capital to be one million usd. Over these years, Shanghai xunzhong has been dedicated to continuous innovation, having establish our own R& D team LED by engineer with doctoral degree of Tongji university with 30 years' experience in this field.