
Industrial Systems, Installations And Equipment And Industrial Products - Structuring Principles And Reference Designations - Part 2: Classification Of Objects And Codes For Classes
出版:Nederlands Normalisatie Instituut

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Industrial Systems, Installations And Equipment And Industrial Products - Structuring Principles And Reference Designations - Part 2: Classification Of Objects And Codes For Classes
出版:Nederlands Normalisatie Instituut
專家解讀視頻