74119364
Nov 30, 1990
Nov 17, 1992
portland cement; masonry cement; ready-mix concrete; dry concrete mix; concrete block and bricks; asphalt, asphalt emulsions and asphalt sealants; precast concrete retaining walls and other precast concrete articles; crushed and broken limestone, granite and stone; construction sand and gravel; industrial sand; concrete pipe; concrete septic tanks; concrete manholes; concrete roof tiles; concrete bridge beams; concrete pilings, bearing piles and sheet piles
Nonmetallic Building Materials