Located on the southeast side of Development Avenue, Tongxiang Economic Development Zone, west of Qinhuangmiaogang, it has 22 floors above ground and 1 floor underground, with a construction period of 60 days and a high-rise frame structure type. Our company participated in the construction of the shared hall of Building 1#3# and Building 7#8#. The installation of fresh air system, pipes and power cables in the HVAC system cost about 11.14 million yuan.