选矿厂
Dressing plant
dressing works
ore dressing plant
ore deressing plant
concentrator
concentration plant
concentrating mill
beneficiating plant
beneficiation plant
Ore-dressing area
Mineral processing plant
Mineral separation plant
ore treatment plant
milk emulsion
preparation plant
Washer
Mill
concentration smelting
ore concentration plant
Mineral plant
a mineral processing plant
铜镍选矿厂
copper and nickel processing plant
湖南雄黄矿厂
As4S4 mineral factory of Hunan
大红山铁矿选矿厂
oredressing plant of Dahongshan iron mine