DIFF Subgroup
C04B 38/061 Full Title
Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof (treating slag with gases or gas generating material C04B5/06 ) > by burning-out added substances
C04B 38/061 Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof (treating slag with gases or gas generating material C04B5/06 ) > by burning-out added substances