Located in Kangqiao modern industrial park of Shanghai city, with an area of 15000 square meters, Qingjie Corporation has four subsidiary companies: Shanghai Quick & Strong Scaffold Co., Ltd. Shanghai Qingjie metals structure & Engineering Co., Ltd. Shanghai Dezhi Cable New Material Co., Ltd. Shanghai Keqing Hoisting Machine Co., Ltd. (a joint venture with Finland Konecranes). Devoted in R&D, production and management of scaffold, Shanghai Quick & Strong Scaffold Co., Ltd is pound of skilled R&D staffs, offering innovative and high-quality products for our customers. It also devised a new patent product based on Euramerican advanced principle. Ring-Lock System Scaffold, which was widely applied to construction engineering due to their more efficiency and safety.