【建】 铜溶液

suspensoryligament,Copper'sligament

glass silk-wrapped enameled copper wire

copper plate press【印刷】;gravure press【印刷】;gravure printing machine【印刷】

electrolytic copper

Prezatide Copper Acetate

magnesicm-copper-sulphide recti-fier

peacock copper【矿】;peacock ore【矿】

copper oxide photovoltaic cell