Wei Collection, Upper Volume Radical: Bamboo (zhú) Ru Kangxi strokes: 12 Page 883, Entry 05 Jade Chapters (Yupian) pronunciation: ru Collected Rhymes (Jiyun) pronunciation: ru The pronunciation is ru. Bamboo scrapings used to caulk boat seams. Categorized Chapters (Leipian): Scraping bamboo skin to make ru.