GB/T 23561.12-2010 standards english version

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 23561.12-2010

Methods for determining the physical and mechanical properties of coal and rock - Part 12: Method for determining coal hardiness coefficient

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The Standardization Administration of the People's Republic of China

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GB Standard Code	GB/T 23561.12-2010
Standard Category	China National Standards
GB Standard English Title	Methods for determining the physical and mechanical properties of coal and rock - Part 12: Method for determining coal hardiness coefficient
GB Standard Chinese Title	煤和岩石物理力学性质测定方法第12部分：煤的坚固性系数测定方法
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