金工理論與實務 - Erhard Brepohl 教授博士（翻譯版）

Finally, an English translation of Brepohl’s classic—the depth of the metallurgy and tooling sections alone is worth the price. The 800+ pages feel dense but incredibly thorough, perfect for serious study.

I’ve been a jeweler for years, and this translation finally makes Brepohl’s technical deep-dive on alloys and soldering accessible in English. The chapters on casting and rolling mill adjustments alone are worth the price.

Finally, a translation of Brepohl's masterwork that I can actually study without struggling through technical German. The sheer breadth of metallurgy and stone-setting techniques covered here is incredible.