Xu Collection, Upper Volume Radical: Metal (jīn) Chain (liàn) Kangxi Strokes: 19 Page 1319, Entry 10 Pronounced lián Shuowen Jiezi (Shuowen): A type of metal. Yupian (Yupian): Lead ore. Also spelled as lián (Zhengzitong). Records of the Grand Historian (Shiji), Biography of Economic Activities: The Yangtze River region produces gold, tin, and lead. Commentary: Xu Guang says it refers to unrefined lead. Liushu Gu (Liushu gu): Modern people use the word chain to describe things connected together like a heavy iron chain. Pronounced duān Meaning same as above. Alternatively, it refers to ore.