Project No.ISO 1722:1974
Title<p>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.</p>
Registration number (WIID)6342
Scope<p>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.</p>
StatusStandarts spēkā
ICS group73.100.30