... washed North China white goat hair 水洗华北白山羊毛 washed ore 精矿砂 washed pig hair combings 水洗猪毛渣子 ...
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根据我们提供的精矿砂品位的技术资料，很多企业都计划用依安的高品位石英砂。
Many enterprises are planning to use the high grade quartz sand from Yi'an after their studying the technology data presented by us.
本发明涉及一种粉煤灰和炉渣的综合性利用的方法，特别是涉及一种从 粉煤灰或炉渣中提取铁精矿砂的方法。
The invention relates to a method for the comprehensive utilization of fly ash and slag, in particular to a method for extracting the iron concentrate ore from the fly ash or the slag.
钴矿砂及其精矿。
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