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ISO 722:1985Withdrawn

Rock drilling — Hollow hexagonal drill-steels in bar form

Forage des roches — Profilé hexagonal creux en acier pour fleurets

This edition has been replaced by ISO 722:1991.

Abstract / scope

No abstract published for this document yet.

Life cycle

Replaced by

ISO 722:1991PublishedRock drilling equipment — Hollow drill steels in bar form, hexagonal and roundInternational Standard · Published 24 Jan 1991 · ISO/TC 82