Standard Number: YB/T 4866.2-2020(YB/T4866.2-2020)
Chinese:铁矿山露天转地下开采技术规范 第2部分：协同开采技术规范
English:Technical Specification for Conversion of Iron Ore Mines from Open Pit to Underground Mining Part 2: Technical Specification for Co-operative Mining
Effective Date:2021-04-01
Standard Applicability:This part specifies the selection and requirements of iron ore mine open pit to underground collaborative mining technology, etc. This part applies to iron ore mining enterprises.
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