FIT SLAB IS A FORMWORK MADE OF POLYPROPYLENE; ITS PRINCIPAL FUNCTION IS LIGHTENING AND, WHEN USED IN CONJUNCTION WITH PREFABRICATED BEAMS MADE OF PRE-STRESSED REINFORCED CONCRETE, OR LATTICES OR DIRECTLY ON PREFABRICATED LATTICE SLABS, IT ENABLES THE CONSTRUCTION OF VARIOUS TYPES OF VOIDED SLABS MADE OF REINFORCED CONCRETE, WITH EXTREMELY QUICK INSTALLATION IN BOTH RECONSTRUCTIONS AND NEW BUILDINGS.