DIN 20301:1999-01
Rock drilling operations - Terminology, units, and symbols for use in formulae

Standard No.

DIN 20301:1999-01

Release Date

1999

Published By

German Institute for Standardization

Latest

DIN 20301:1999-01

DIN 20301:1999-01 history

• 1999 DIN 20301:1999-01 Rock drilling operations - Terminology, units, and symbols for use in formulae