缶石 かんせき noun (common) (futsuumeishi) 缶石かんせき Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) scale on the inside of a boiler 漢字 kanji used 缶 tin can, container 6画 石 stone 5画
缶石かんせき Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) scale on the inside of a boiler