Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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DB37/T 3146-2018 Detailed rule for the system of screening for and elimination of industry commerce and trade risks of work safety accidents of Undergroud iron ore via email in business day valid
DB37/T 3145-2018 Implementation Guidelines for the Management and Control System of Risk Classification for Production Safety of Underground iron ore via email in business day valid
DZ 0041-1992 Quality inspection rule of geological instrument product 90.0 via email in 1~3 business day valid
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