Refractory ceramic bricks and shaped products, refractory ceramic masses, refractory cement and concrete, refractory ceramic molding sand; clay and clay minerals; construction materials (other than made of metal).

Refractory ceramic bricks and shapes; refractory ceramic masses, namely, castable mixed and mortars; [ refractory ] cement and concrete, refractory [ ceramic molding sand and foundry sand, clay, namely, potters' clay, refractory clay and clay as an additive for use in the manufacture of refractory products; clay-stone minerals; construction materials, namely, concrete beams, concrete blocks, ceramic tiles, cement pipes, glass panels, glass tiles, insulated glass, non-metal floor tiles, non-me...