Prezentul standard stabile?te parametrii principali ai instala?iilor de foraj rotativ? destinate cercet?rii geologice a substan?elor minerale utile solide, p?n? la ad?ncimi de max. 3000 m.
STAS 6559-1988 history
1988STAS 6559-1988 Equipmenl for geological investigations GEOLOGICAL DRILL1NG RIGSMain paramcters
1981STAS 6559-1980 Equipment for geological investigation GEOLOGICAL DRILLING RIGS Types and basic parameters