Classification Information
Aggregate material composed of sand, rock materials, namely, pebbles and rocks, white cement used for swimming pool construction, finishes, and landscaping; Rigid pipes, not of metal
Nonmetallic Building MaterialsAggregate material composed of sand, rock materials, namely, pebbles and rocks, white cement used for swimming pool construction, finishes, and landscaping; Rigid pipes, not of metal
Nonmetallic Building Materials