Metal roofing engineering of the Main Stadium has drawn a conclusion yesterday officially. It is said that the area of the total engineering reaches 95,000 square meters, mainly comprised of 28 big pieces petals and 27 pieces of smaller ones. Those petals are Al-mg-MN board, which covered 75,000 square meters of the white roof. Moreover, between two petals are PC board, and the size of which is totally 15,000 square meters. In addition, 5,000 square meters gutter edge is meticulously stitched along these super petals. Thereafter, refined decoration of the Main Stadium and equipment installation will be arranged to land, achieving the opening ceremony of 2017 National Students Sports meeting.