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Standards Worldwide
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Standard [WITHDRAWN]

ISO/R 1722:1970-11

Rock drilling; Extension drill-steel equipment for percussive long-hole drilling; Reverse-buttress-threaded equipments 1 1/2 to 2 1/2 in (38 to 64 mm)

German title
Gesteinsbohrung; Verlängerungsgestänge zum Langloch-Schlagbohren; Geräte mit umgekehrtem Sägezahngewinde 1 1/2 Zoll bis 2 1/2 Zoll (38 und 64 mm)
Publication date
1970-11
Original language
English
Pages
12

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Publication date
1970-11
Original language
English
Pages
12

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Replacement amendments

This document has been replaced by: ISO 1722:1974-09 .

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