NB/T 10549-2021
DC resistivity detection method for grouting effect of coal mining face floor (English Version)

Standard No.

NB/T 10549-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家能源局

Latest

NB/T 10549-2021

NB/T 10549-2021 history

• 2021 NB/T 10549-2021 DC resistivity detection method for grouting effect of coal mining face floor