行业描述
This U.S. industry comprises (1) establishments primarily engaged in developing the mine site, mining or quarrying crushed and broken limestone (including related rocks, such as dolomite, cement rock, marl, travertine, and calcareous tufa) and (2) preparation plants primarily engaged in beneficiating limestone (e.g., grinding or pulverizing).
排除内容
Producing lime--are classified in Industry 327410, Lime Manufacturing; and
Mining or quarrying bituminous limestone--are classified in U.S. Industry 212319, Other Crushed and Broken Stone Mining and Quarrying.
关键词
Agricultural limestone mining and/or beneficiating
Calcareous tufa crushed and broken stone mining and/or beneficiating
Cement rock crushed and broken stone mining and/or beneficiating
Chalk crushed and broken stone mining and/or beneficiating
Chalk, ground or otherwise treated, mining and/or beneficiating
Dolomite crushed and broken stone mining and/or beneficiating
Lime rock, ground, mining and/or beneficiating
Limestone (except bituminous) crushed and broken stone mining and/or beneficiating
Limestone beneficiating plants (e.g., grinding or pulverizing)
Marl crushed and broken stone mining and/or beneficiating
Riprap, limestone, mining or quarrying
Riprap, limestone, preparation plants
Travertine crushed and broken stone mining and/or beneficiating
Tufa, calcareous, crushed and broken stone, mining and/or beneficiating
Whiting crushed and broken stone, mining and/or beneficiating
