What floor is the channel steel floor of Building 2 of Sisley Mansion in Donghe Greenland, Baotou?

6. Floor 12 and 18, etc. According to the announcement of the inquiry construction bureau, the channel steel floor of this building needs to be built once on the sixth floor, so the building floor of Building 2 of Sisley Mansion in Donghe Greenland of Baotou needs to be located on the sixth floor, 12 floor, 18 floor and 24th floor. Channel steel is a kind of long strip steel with trough-shaped cross section, which belongs to carbon structural steel used in construction and machinery. It is a complex section steel with a trough-shaped cross section. Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing.