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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

Fecha:

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.

Comité:

ISO/TC 82 - Mining

Relación con otras normas ISO:

Anula a: ISO 722:1985

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Formato digital

Ingles / Frances