A Familiarization with gold and the jewelry metals.
Traditionally, gold has been known for its use as a jewelry metal and has placed second to copper in importance as ornament only because of its cost abs relative rarity. Aside from these two metals, however, platinum, silver, and nickel have also familiarize the reader with the different properties...
| Опубликовано в:: | UPCOE NEC Technical Bulletin 1, 2 (September 2004). |
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| Главный автор: | |
| Формат: | Статья |
| Язык: | English |
| Предметы: |