mortar mix; refractory mortar; mortar; dry mortar; mortar cartridges containing synthetic resins for use in building construction; adhesive mortar for use in building; non-metallic building materials; building materials, non-metallic; cement; cement mixes; cement mortar roofing tiles; aggregate materials for use in concrete; concrete building materials; concrete building elements; building and construction elements and materials made of sand, stone, rock, clay, minerals and concrete