In April 24, 2007, a conference of Shanghai metal structure industry association held in Shanghai, at the meeting, our company, Tongji University architectural design and Research Institute, Jiangnan heavy industry, Shanghai Bao steel Engineering Technology Co., Ltd., Shanghai Bao Metallurgical Construction Co Ltd, China twenty Metallurgical Metal Structure Co. Ltd, Shanghai boiler factory, Jiangsu Huning steel, Zhejiang Seiko technology, Chaofeng steel structure, Southeast space frame, hang Xiao steel, Hengda steel etc. were selected as council member of the association. Our general manager Ling Qinghua attended the meeting, exchanged with many experts and scholars and participants of the executives.