ISO 1721
Rock Drilling - Extension Drill-Steel Equipment for Percussive Long-Hole Drilling - Reverse-Buttress-Threaded Equipments 1 1/16 and (27 and 32 mm)
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| Organization: | ISO |
| Publication Date: | 1 January 1974 |
| Status: | active |
| Page Count: | 8 |
| ICS Code (Equipment for drilling and mine excavation): | 73.100.30 |
Document History
ISO 1721
January 1, 1974
Rock Drilling - Extension Drill-Steel Equipment for Percussive Long-Hole Drilling - Reverse-Buttress-Threaded Equipments 1 1/16 and (27 and 32 mm)
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