Refractory bricks, not of metal; Refractory castable mixes, not of metal; Refractory cement; Refractory concrete; Refractory construction materials, not of metal; Refractory furnace linings, not of metal; Refractory mortars; Ceramic bricks for use in refractory furnaces; Semi-refractory bricks, not of metal

Construction and installation of masonry walls and structures; Consulting services for the construction and installation of masonry walls and structures; Masonry services; Consulting services for repair and restoration of masonry walls and structures