The Wugang manganese smelter is in one of China's major iron and steel centers. Manganese is often added to steel to increase its tensile strength.
武冈冶锰熔炉是中国大型钢铁中心之一，钢里往往加入锰以增强它的韧度。
The Wugang manganese smelter is in one of China's major iron and steel centers.
武钢锰溶场位于中国主要的钢铁中心之一。
The Wugang manganese smelter is in one of China's major iron and steel centers.
武钢锰溶场位于中国主要的钢铁中心之一。
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