Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 23251-2021 |
Guideline for coal used in coal chemical technology 煤化工用煤技术导则 |
China National Standards Guideline coal used |
English PDF |
GB/T 23251-2009 |
Guideline for coal used in coal chemical conversion 煤化工用煤技术导则 |
China National Standards Guideline coal used |
English PDF |
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