黄铜 huángtóng brass

青铜 qīngtóng bronze; gunmetal

铜版 tóngbǎn copperplate

铜板 tóngbǎn coppers

铜焊 tónghàn brazing

铜绿 tónglǜ verdigris

铜质 tóngzhì coppery

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