黄銅 (shinjitai kanji, kyūjitai kanji 黃銅, hiragana おうどう, rōmaji ōdō, historical hiragana わうどう)
黄銅 (shinjitai kanji, kyūjitai kanji 黃銅, hiragana こうどう, rōmaji kōdō, historical hiragana くわうどう)