
En 755 Aluminium And Aluminium Alloys - Extruded Rod/bar, Tube And Profiles - Part 8: Porthole Tubes, Tolerances On Dimensions And Form
出版:British Standards Institution

專家解讀視頻
En 755 Aluminium And Aluminium Alloys - Extruded Rod/bar, Tube And Profiles - Part 8: Porthole Tubes, Tolerances On Dimensions And Form
出版:British Standards Institution
專家解讀視頻