T/CNCA 031-2022
Technical requirements for investigation of natural disaster-affected bodies in open-pit coal mines (English Version)

Standard No.

T/CNCA 031-2022

Language

Chinese, Available in English version

Published By

Group Standards of the People's Republic of China

Latest

T/CNCA 031-2022

T/CNCA 031-2022 history

• 1970 T/CNCA 031-2022 Technical requirements for investigation of natural disaster-affected bodies in open-pit coal mines