
En 1592 Aluminium And Aluminium Alloys - Hf Seam Welded Tubes - Part 4: Tolerances On Dimensions And Form For Square, Rectangular And Shaped Tubes
出版:British Standards Institution

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En 1592 Aluminium And Aluminium Alloys - Hf Seam Welded Tubes - Part 4: Tolerances On Dimensions And Form For Square, Rectangular And Shaped Tubes
出版:British Standards Institution
專家解讀視頻