Mingder Mineral ore Sorting Machine, ccd color sorter machine professionally for different mineral ores, rocks, mineral stones: calcite, calcium, feldspars, quartz, manganese ore etc for different sizes and colors. www.hefeimd.com/en Mobile/whatsapp: 008613966725592 Skype: dianahongsmile Email: dianahong@hefeimd.com Company: Hefei Mingde Optoelectronic Technology Co., LTD