Because the entire work consists of a depiction of a moth orchid and vase, Wu could not weld or smith gold using traditional methods. Not only did he use an argon arc welder, but because the five orchid petals were-right to left and back to front-all entirely different from each other, it was necessary to use five different molds.
這件《蝴蝶蘭》共用掉五千六百公克純金，由於整件作品花瓶與蘭花一體成型，其中牽涉的燃燒火力與工序，不是一般傳統金飾處理所能完成，不但改用氬銲機燒製，由於蘭花有五瓣，前後左右大小都不同，還需要開五個模型。