Ferrous Metals Material的意思|示意

The Current research status, potential advantages and outlook of ferrous, nonferrous rare metals and precious metals material of Yunnan in 2005 are summarized and reviewed.

评述了云南省2005年黑色金属、有色金属、稀贵金属和陶瓷材料等的研究状况，分析了潜在优势并展望了未来前景。

Moreover, CrN coating also has excellent welding resistance with non-ferrous metals, and is also applied for surface coating to cutting tools of copper material, for example.

本涂膜对有色金属有很高的耐溶接性，适用于铜材料等切削工具的表面涂膜加工。