veera1234 Apprentice anantapur Jul 15, 2019 #1 I was read an article in the civil4m that the tile was manufacturing with clay without impurities, is it right? so, how can we find impurities in clay
I was read an article in the civil4m that the tile was manufacturing with clay without impurities, is it right? so, how can we find impurities in clay
