It is a construction system that produces lightweight, prefabricated reinforced parts from the factory. There are types of precast bearing walls (Bearing wall), non-bearing walls (Non-Bearing wall) and modular systems (Modular). They can be lifted and assembled or installed immediately. It helps reduce construction time, reduce labor on site, reduce waste on site, and reduce construction costs. It is suitable for residential buildings, large buildings and energy-saving buildings.