In recent years, the development of prefabricated building products represented by the two leading companies in Xiamen has covered many fields such as PC (prefabricated reinforced concrete) components, subway shield tunnel segments, and municipal comprehensive pipe corridors etc.. Based in Xiamen, it also covers the surrounding areas, such as Fuzhou, Zhangzhou, Putian and Quanzhou etc., the scale of production bases has initially formed, and the concept of green ecological development has also been recognized at the national level.