STAS 12720/3-1989
Equipment for hydrogeological drilling. Rods for counter-flush drilling by absorption or airlift. Dimensions

Standard No.

STAS 12720/3-1989

Release Date

1989

Published By

RO-ASRO

Latest

STAS 12720/3-1989

Scope

Prezentul standard stabile?te dimensiunile pr?jinilor pentru forajul cu circula?ie invers? prin absorb?ie sau aer-lift, folosite la forajul sondelor hidrogeologice.

STAS 12720/3-1989 history

• 1989 STAS 12720/3-1989 Equipment for hydrogeological drilling. Rods for counter-flush drilling by absorption or airlift. Dimensions

STAS 12720/3-1989 -All Parts