
Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation - Limits of size
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation - Limits of size
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频