T/DGGC 022-2023
Shield machine maintenance and repair technical specifications (English Version)

Standard No.

T/DGGC 022-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Group Standards of the People's Republic of China

Latest

T/DGGC 022-2023

T/DGGC 022-2023 history

• 2023 T/DGGC 022-2023 Shield machine maintenance and repair technical specifications