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出典:Wiktionary
Britannia metal (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/02/11 22:52 UTC 版)
Britannia metal or britannium is a pewter-type alloy favoured for its silvery appearance and smooth surface. The composition is approximately 93% tin, 5% antimony, and 2% copper.
Britannia metal