GMCB

Clay Products and Clay Compositions-Namely, Structural Clay Hollow Tile, Roof Tile, Sewer Pipe, Drain Pipe, Chimney Pipe, Flue Lining, Conduit, Wall Coping, Fire Brick, Arch Shapes, Plastic Clay Compositions for Refractory Brick and Refractory Compositions Capable of Being Rammed into Shapes Including Refractory Fire Clay and Grog, Mortar, Floor and Wall Tile