Classification Information
Concrete; Grout; Mortar for building; Cement mortar slates; Cement mortar pipes; Cement mortar roofing tiles; Fireclay; Cement; Silver sand; Calcareous marl being limestone; Lime building materials; Potters' clay; Asphalt; Gypsum for use as building materials; Bricks; Gravel; Building stones
Nonmetallic Building Materials