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Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
formed concrete products, namely, non-metal slabs of concrete for patios, malls, roofs, decks, and pedestrian areas; formed concrete products, namely, tiles, not of metal, for building for patios, malls, roofs, decks, and pedestrian areas; formed concrete products, namely, paver tiles for patios, malls, roofs, decks, and pedestrian areas; formed concrete products, namely, bricks for patios, malls, roofs, decks, and pedestrian areas; all of the foregoing being made entirely in the united states of america by an american company