Description : Would you be interested in P2-0.5, P4-0.6 or A + P2-0.4? http://www.kepfeltoltes.eu/view.php?filename=581022.jpg http://www.kepfeltoltes.eu/view.php?filename=630023.jpg
Last Answer : P2 and P4 denote hardness if I know it well, and it can't be determined at first glance. The Ytong A + designation, for example, means energy rating. At first glance, this is not the clearest feature either. I ... data, such as A +, there are a lot of Ytong products, as well as P2 and P4.