STAS 998-1989
Petroleum equipment HOOK-BLOCKS FOR ROTARY DRILLING

Standard No.

STAS 998-1989

Release Date

1989

Published By

RO-ASRO

Latest

STAS 998-1989

Scope

Prezentul standard se refer? la maearalele-c?rlig utilizate ?n cadrul instala?iilor de foraj rotativ. OBSERVA?IE —Temperatura de lucru ?i climatul pentru care se livreaz? trebuie s? fie specificate in contract.

STAS 998-1989 history

• 1989 STAS 998-1989 Petroleum equipment HOOK-BLOCKS FOR ROTARY DRILLING