General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 25666-2010
GB/T 25666-2010 Referenced Document
GB/T 1442 Driving tenons and sockets for parallel shank tools--Dimensions
GB/T 2075 Classification and application of hard cutting materials for metal removal with defined cutting edges.Designation of the main groups and groups of application