Unlike the traditional cast-in-place construction method, this new construction model is not built brick by brick. There are no randomly stacked cement, bricks, steel bars, and wood on the construction site, nor are there vehicles transporting sand and gravel in and out, and dust everywhere. Instead, the steel columns, beams, diagonal supports and other components of prefabricated buildings are processed and prefabricated in the factory workshop according to the design drawings, and then transported to the construction site for assembly and splicing, in an orderly manner.