巴基斯坦山达克铜金工程冶炼厂
Smelter of Saindak Copper and Gold Mine Project in Parkistan
边磨边浸氰化提金工艺
cyaniding technology of gold leaching while pulverizing
大型冶金工程
large scale metallurgical engineering
镀金工艺
technology for gold electroplating
仿金工艺技术
gold-imitation processing technology
飞机钣金工艺
aircraft sheet metal forming process
粉末冶金工具钢
Keywordpowder metallurgy tool steel
powder metallurgy tool steel
PM tool steels