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Standard
UNE 22663:1985

UNE 22663:1985

Perforación de rocas. Equipos para perforación por percusión, con rosca soga de 38 a 51 mm (1 1/2 pulgadas a 2 pulgadas).

ROCK DRILLING. EXTENSION DRILL-STEEL EQUIPMENT FOR PERCUSSIVE LONG-HOLE DRILLING. ROPE-THREADED EQUIPMENTS 1 1/2 TO 2 IN (38 TO 51 MM).

Publication Date:
1985-04-15 /Anulada
Cancellation date:
2022-10-27
International equivalences:

ISO 1720:1974 (Identical)

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