Norm

ISO 1722:1974 en

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)

31,57

Over deze norm

Status Definitief
Aantal pagina's 6
Commissie Mobiele transportwerktuigen
Gepubliceerd op 01-09-1974
Taal Engels
Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: size of drill-steel in bar form; lengths of extension rods; coupling sleeves; bit diameters (four-wing bits); reverse-buttress threads; hollow hexagonal bars for extension rods.

Details

ICS-code 73.100.30
Nederlandse titel 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)
Engelse titel 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)

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