China National Standards

China design dewatering draining GB Standards List

  •  China "design dewatering draining" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB 51173-2016 Code for design of dewatering and draining in open pit mine of coal industry
    煤炭工业露天矿疏干排水设计规范    		 China National Standards
    design dewatering draining
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