Xu Collection, Upper Volume Radical: Metal (jīn) Bin Kangxi strokes: 22 Page 1325, Entry 05 According to the Expanded Rhyme Dictionary (Guangyun), it is pronounced bin. According to the Collected Rhymes (Jiyun), the Rhyme Compendium (Yunhui), and the Correct Rhymes (Zhengyun), it is also pronounced bin. Knives forged from refined steel (bin tie) are extremely sharp.