GBT50562
GBT50562, Total:2 items.
The international standard classification for "GBT50562" includes: .
The Chinese standard classification for "GBT50562" includes: .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 50562-2019 Standard for basic terms of coal mine construction engineering
- GB/T 50562-2010 Code for basic terms of coal mine construction engineering
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