Hollow core slab making machine works on the long-line table, using the high-strength low- relaxation steel strand as the guide, using the pushing work method to firm the concrete hollow core slab. The slab have the advantages o smooth surface, high-density structure, capable of making construction slabs of 4.2m to 18m. The GLY serious concrete hollow core slab mainly used on the larger bay workshop, school, hospital shopping mall, office building, bulk storage plant etc.