Calamine brass

Calamine brass is brass produced by a particular alloying technique using the zinc ore calamine directly, rather than first refining it to metallic zinc. Zinc smelting is difficult and the pure metal was largely unknown historically, even though the alloyed calamine brass was in use for centuries.

单词	Calamine Brass
释义	Calamine Brass 英语百科 Calamine brass Calamine brass is brass produced by a particular alloying technique using the zinc ore calamine directly, rather than first refining it to metallic zinc. Zinc smelting is difficult and the pure metal was largely unknown historically, even though the alloyed calamine brass was in use for centuries.
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Calamine Brass

Calamine brass