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ISO 722:1991

ISO 722:1991

Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

Matériel de forage des roches — Barres creuses, hexagonales et rondes pour fleurets

Date:
1991-01-24 / Published
ICS:

73.100.30 - Equipment for drilling and mine excavation. Including equipment for seabed mining

77.140.60 - Steel bars and rods.

Committee:
ISO/TC 82 - Mining
Relación con otras normas ISO:

Anula a: ISO 722:1985

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Ingles / Frances