qinghai office of geology and mineral resources minister liu and his company to 300,000 tons ore dressing plant construction site inspections.
青海省地矿厅刘厅长一行到公司30万吨选矿厂建设工地视察工作。
the invention discloses solid waste porcelain granules in an iron ore mine and an ore dressing plant and a preparation method thereof and belongs to the building material field.