The second chapter presents the content and characteristic of metallurgy project. It mainly elucidates iron smelting system , steel smelting system and continuous casting system for machine erection .
第二章介绍了冶金工程项目的内容和特点，主要阐述炼铁系统、炼钢系统以及连铸系统设备安装的主要内容。
The waste water released by various types of petrochemicals, iron and steel metallurgy plant also contains a lot of sulfate ion.
各类石油化工，钢铁冶金工厂排放的废水中也含有大量硫酸根离子。
This invention relates to a raw material of metallurgy of steel-melting, especially a compound iron ball for steel-melting and its facture.
本发明涉及一种冶金工业炼钢生产使用的原料领域，特别是一种炼钢用复合铁球及其生产工艺。
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