By using new formulations, that contains only quartz sand, calcined gypsum, lime (mineral), cement, water and aluminum powder, Ytong made a completely new variety of aerated concrete that now not consists of alum slate and therefore has removed the issue of radon exposure from this raw material. The creation of https://aac-bricks-plant66554.blogunok.com/27967201/about-aac-bricks-plant