PERFECTIONING INTRODUCED IN MODULES PLUG-IN. The asked for gift of patent of Model of Utility is characterized essentially by a perfectioning introduced in modules plug-in (1A, 1B, 1C, 1D), manufactured in mineral, natural asbestos-cement, staple fibres, or industrials, where it possesss orifices (3A, 3B, 3C and 3D) for hydraulical installation, electric structural and they ferraegem, later filled with isopores, wool of rock and glass or other types of used termoac鷖ticos insulators in the real estate civil construction for walls, walls, lining and flagstone through rabbets (2A, 2B), capable to eliminate the use of materials as bricks, blocks of concrete, I tow, wood, preventing wastefulness, being that after the rabbet of the respective parts between itself (1A, 1B, 1C, 1D), will result nuam smooth surface, susceptible to receive finishings or coverings, being able the modules plug-in (1A, 1B, 1C, 1D) to vary in the length, thickness and format, depending on the necessity of each project, treating itself, therefore, of practical, efficient and ecologically correct, capable a product to speed up the constructive process