The morning of November 27th, built by triumpher steel construction steel structure engineering in new Hangzhou train east station roof smooth closure. The station roof area of about 113000 square meters, the closure part of steel structure of 68 meters wide, 73.8 meters long, weighing about 400 tons, is the most wide width, lifting a truss is the most difficult. The whole process using in integral hoisting technology of a one-time increase, achieve closure. Implementation of the new Hangzhou train station roof steel structure project of the main completed, the overall project implementation through the station. (reporter Ai Haoyuan)