2.铜精矿(copper concentrates),每月5000吨,长期供货基本指标:Cu 18% min Pb+Zn 8%max As 1%max Cd 0.5%max
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import copper concentrates 进口铜精矿
gold copper concentrates 高铜金精矿
copper concentrates quality 铜精矿质量
Non-floatation copper concentrates 非浮选铜精矿
Precautions in loading copper concentrates 装载精铜矿的注意事项
Copper ore concentrates Concentration 铜精矿分析结果
Copper ores and concentrates 铜矿砂及其精矿
Copper ores & concentrates 铜矿砂及其精矿
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