
Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels, quenched and tempered
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels, quenched and tempered
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频