UNE 22664:1985
ROCK DRILLING. EXTENSION DRILL-STEEL EQUIPMENT FOR PERCUSSIVE LONG-HOLE DRILLING. REVERSE BUTTRESS-THREADED EQUIPMENTS 1 1/16 AND 1 1/4 IN (27 AND 32 MM).

Standard No.

UNE 22664:1985

Release Date

1985

Published By

AENOR

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UNE 22664:1985

UNE 22664:1985 history

• 1985 UNE 22664:1985 ROCK DRILLING. EXTENSION DRILL-STEEL EQUIPMENT FOR PERCUSSIVE LONG-HOLE DRILLING. REVERSE BUTTRESS-THREADED EQUIPMENTS 1 1/16 AND 1 1/4 IN (27 AND 32 MM).