STAS 12720/5-1989
Equipment for hydrogeological drilling FLOW RODS FOR COUNTER-FLUSH DRILLING BY AIRLIFT Dimensions

Standard No.
STAS 12720/5-1989
Release Date
1989
Published By
RO-ASRO
Latest
STAS 12720/5-1989
Scope
Prezentul standard stabile?te dimensiunile pr?jinilor cu duze, pentru forajul cu circula?ie invers? prin aer-lift, folosite la forajul sondelor hidrogeologice.

STAS 12720/5-1989 history

  • 1989 STAS 12720/5-1989 Equipment for hydrogeological drilling FLOW RODS FOR COUNTER-FLUSH DRILLING BY AIRLIFT Dimensions

STAS 12720/5-1989 -All Parts

STAS 12720/1-1989 Equipment for hydrogeological drilling DRILLING PIPES FOR COUNTER-FLUSH DRILLING BY ABSORPTION OR AIRLIFT Quality technical requirements STAS 12720/2-1989 Equipment for hydrogeological drilling ENTRAINMENT DRILL PIPES FOR COUNTER-FLUSH DRILLING BYABSORPTION OR AIRLIFT Dimensions STAS 12720/3-1989 Equipment for hydrogeological drilling. Rods for counter-flush drilling by absorption or airlift. Dimensions STAS 12720/4-1989 Equipment for hydrogeological drilling BIT COLLARS FOR COUNTER FLUSH DRILLING BY ABSORPTION OR AIRLIFT Dimensions STAS 12720/5-1989 Equipment for hydrogeological drilling FLOW RODS FOR COUNTER-FLUSH DRILLING BY AIRLIFT Dimensions


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