The floor shel is made of high-quality cold-rolled steel plate, which is stretched and welded into shape. The surface is phosphatized and then subjected to electrostatic spraying, while the interior is filed with high-quality foam cement. in order to solve the wiring dificulties caused by the increasing number of modern inteligent building pipelines, this floor can be equipped with movable cable tray boards to lay various types of pipelines. Simply lift the cable tray cover plate to lay and maintain various types of pipelines, making installation and maintenance extremely convenient.