Standards
[Withdrawn]
DIN 21538-2
DIN 21538-2
Mine support; rigid connecting elements, arch stilts, and other connecting elements for support in roadways and other type of mine support; testing
Title (German)
Grubenausbau - Biegesteife Verbindungen, Senkstützen und Verbindungselemente für Strecken und sonstige Grubenbaue - Prüfung