China National Standards

China Gob side Industry Standards English PDF List

  •  China " Gob side" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    NB/T 51047-2016 (Gob - side Roadway high water material filling the technical requirements)
    沿空留巷高水材料巷旁填充技术要求    		 China Energy industry Standards
    Gob side
    English PDF

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