短語詞組短語brazilian iron ore concentrate 巴西精礦Aoshan iron ore concentrate 凹山精礦iron ore concentrate powder 鐵精礦粉baotou iron ore concentrate 包頭鐵精礦upgrading iron ore concentrate 提高鐵精礦品位quality iron ore concentrate 優(yōu)質(zhì)鐵精礦fine iron ore concentrate 鐵精粉iron ore concentrate dryer 鐵精礦干燥機(jī)Meishan iron ore concentrate 梅精礦 返回 iron ore concentrate