有色金属

• Metals are divided into ferrous and non - ferrous metals
  金属分为黑色金属和有色金属。
• Baoji branch of shanxi non - ferrous metal mine company
  陕西有色金属矿山公司宝鸡分公司
• General rules for inspection of non - ferrous metal materials
  有色金属材料检查的通用规则
• Producer of rosins and rosin derivatives in india
  -生产有色金属的企业。
• Terminology relating to non - ferrous metals and alloys
  有色金属和合金术语
• Specification for labour design of non - ferrous metals industry
  有色金属工业劳动设计规程
• Designation of cast nonferrous metals and their alloys
  铸造有色金属及其合金牌号表示方法
• Diamond dies for wires of ferrous and non - ferrous metals
  黑色和有色金属线材用金钢石拉模
• Liweilong nonferrous metals co . ltd sihui city guangdong
  广东四会市利威有色金属有限公司
• Reflection on improving personal income tax system in china
  中国有色金属学会会刊英文版