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1980年以来贱金属和贵金属市场的激烈竞争促使瑞典波立顿集团寻找改善其选矿、熔炼和精炼设备的方法以提高经济效益。这些努力已产生良好的效果。在波立顿集团的子公司Boliden Mine-
The intense competition in the base metals and precious metals markets since 1980 prompted the Swedish Politek Group to find ways to improve its beneficiation, smelting and refining facilities to increase economic efficiency. These efforts have produced good results. In the Bolton Group subsidiary Boliden Mine-