"The next thing is to soak it for one minute in a solution of bronze blackener and bronze green, and presto! It looks like an ancient bronze," says Liu Guozheng.
「再放進『銅染黑藥劑』與『銅綠水』調成的液體泡一分鐘，就變成很有古意的青銅色了！」劉國正說。