UNE 22665:1985
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).

Standard No.

UNE 22665:1985

Release Date

1985

Published By

AENOR

Latest

UNE 22665:1985

UNE 22665:1985 history

• 1985 UNE 22665:1985 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).