The white mould in 12 cm thick aluminum, 270 cm high, enables to realize walls in small, medium and large buildings, ensuring a max. concrete pressure resistance of 60 kN/m2. The aluminum module can be manually moved and combined with the steel module ones by joining accessories such as the aligning clamp or pin and wedge. The phenolic multilayer, in 18-mm Finnish wood, enables to realize castings of perfectly smooth walls to be maintained even as external face.