ISO 1720:1974 - Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Rope-threaded equipments 1 1/2 to 2 in (38 to 51 mm)

This standard has been revised by ISO 10207:1991 | ISO 10208:1991

General information

Status
: Withdrawn

Publication date
: 1974-07
Edition
: 1

Number of pages
: 6
Technical Committee
: ISO/TC 82 Mining
ICS
:
73.100.30 Equipment for drilling and mine excavation

Life cycle

Now

Withdrawn

ISO 1720:1974
Stage: 95.99
Revised by

Published

ISO 10207:1991

Published

ISO 10208:1991

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