74237908
Jan 13, 1992
Oct 4, 1994
natural and artificial stone; namely, Portland cement, non-agricultural lime, mortars, plaster, and gravel; piping of earthenware or cement; road making asphalt, pitch and bitumen; portable non-metal buildings; stone monuments; non-metal chimney pots; general paving materials; namely, bricks, stones for floors, loose stone and small trap rock or snare rock, flag-stone, and marble
Nonmetallic Building Materials