We began the practice of construction contracting with main structure design since 1991. In July 1993, our institute was the first unit who obtained the Grade A 德赢vwin官网AC米兰-德赢vwin官网 Certificate issued by the Ministry of Construction. In June 2004, we obtained the ISO9001 international quality management system certification. We have completed 27 general contracting projects and 2 engineering management projects over the past decade. 7 of these projects belong to the national large construction projects. All of these achievements has made our institute no longer a traditional design unit, but an internationally compatible EPC (designing, procurement, construction, commissioning) multifunction design institute with Chinese characteristics.