a gold ore containing arsenic and high-sulfur
gold ore containing high content of arsenic
lead and zinc ore containing gold
Copper ore containing arsenic
oxidized copper ore containing silver
High arsenic high sulfur refractory gold concentrate
high-sulfur and high-arsenic refractory gold conce
low grade refractory ore
refractory containing silicon-carbide
Refractory copper oxide ore
Refractory gold arsenosulfide concentrates
Refractory Gold Floatation Concentrate
refractory leaching gold ore
Refractory Ore
耐火矿石
难处理矿石
难选矿石
难浸矿石
难浸出矿石
难选矿
难洗矿石
耐裂油料
难选
Refractory ore from open-pit mining
refractory oxide copper ore
Refractory sulfide copper ore