Assembled precast concrete structure (PC, Precast Concrete), steel structure and wood structure, the three technologies are self-contained systems, each with its own advantages.

Assembled precast concrete structure: It is a concrete structure assembled with precast components as the main force-bearing components. It can be roughly divided into two stages: factory prefabrication and on-site assembly.

Steel structure: It is a structure composed of steel materials. It is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates. The components or parts are usually connected by welds, bolts or rivets.

Wood structure: refers to a construction method in which wood is mainly used for structural load-bearing components. Modern wooden structural components are processed by laminating, gluing, metal connection and other processes to form a building structure whose performance is far superior to that of logs.