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)

General information

  • Status :  Withdrawn
    Publication date : 1974-07
  • Edition : 1
  • :
    ISO/TC 82
    Mining
  • 73.100.30
    Equipment for drilling and mine excavation

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