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Standard [WITHDRAWN]

ISO/R 722:1968-05

Rock drilling; Hollow hexagonal drill-steels in bar form

German title
Gesteinsbohrung; Sechskant-Hohlbohrstähle
Publication date
1968-05
Original language
English
Pages
4

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Publication date
1968-05
Original language
English
Pages
4

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Replacement amendments

This document has been replaced by: ISO 722:1974-06 , ISO 722:1985-10 , ISO 722:1991-02 .

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