Ancient times when the exercise of metal-doped tin. "Han Fei was learning": "Cardiff, as the forging of tin and police Qinghuang, the district will be the sword can not rule." Xian-Shen Ji Jie: "the rule of the sword must be forged with tin, natural color of Qinghuang, still fail to resolve the sword of Li Dun. "
Translated by Google
That tin smelting
That smelting tin. Jin Ge Hong "Baopuzi yellow and white": "before forging tin side six inches wide, half inch thick, with red juice, salt and ash, so drunk as to the coated tin."