摘要
简要介绍了矿山巷道支护用热轧 U 型钢国家标准的制定原则和主要内容,对标准修订时涉及到的有关事项进行了说明。
This paper describes setting principles and main content about national standards of hot rolled U-shaped steel for mine roadway support,and notes the matters related to standard revised.
出处
《冶金标准化与质量》
2008年第2期12-13,19,共3页
Metallurgical Standardization & Quality
关键词
矿山巷道支护用热轧U型钢
国家标准
修订
Hot rolled U-shaped steel for mine roadway support
national standards
revise
