China National Standards

China mine—Part GB Standards List

  •  China "mine—Part" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 29723.5-2019 Grade and limit of major process energy consumption for coal mine—Part 5: Main elevating system
    煤矿主要工序能耗等级和限值 第5部分:主提升系统    		 China National Standards
    mine—Part
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