DIN 21538-2-1990 标准详情
- 标准号：DIN 21538-2-1990
- 中文标题：矿井支护.平巷支护以及其他矿井支护用抗弯强度连接件.让压支柱和其它连接件.检验
- 英文标题：mine support; rigid connecting elements, arch stilts, and other connecting elements for support in roadways and other type of mine support; testing
- 标准类别：德国标准
- 发布日期：1990-05
