
Thermal Cutting - Part 30: Classififcation Of Thermal Cuts, Principles Of Process, Quality And Dimensional Tolerances
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Thermal Cutting - Part 30: Classififcation Of Thermal Cuts, Principles Of Process, Quality And Dimensional Tolerances
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻