精矿

• Analysis of uncertainty of measurement in the successive hg
  法连续测定锌精矿中砷锑铋锡的不确定度分析
• Rail kuangcaixuan sales : rail concentrates , titanium concentrates
  铁矿采选，销售：铁精矿，钛精矿。
• Study on extraction of indium from oxygen pressure acid leach solution
  锌精矿氧压酸浸液中铟的提取研究
• Pyrites and concentrate - methods for sampling and preparation sample
  硫铁矿和硫精矿采样与样品制备方法
• Research on technology for iron - increasing and silicon - reduction
  用潘洛铁矿精矿生产超级铁精矿粉的研究
• Molybdenum concentrates - determination of potassium and sodium content
  钼精矿化学分析方法钾和钠量的测定
• Phosphate rock and concentrate - methods of sampling and preparing sample
  磷矿石和磷精矿采样与样品制备方法
• Research on improvement recovery of silver associated in lead concentrate
  提高铅精矿中伴生银回收率的研究