抽筒子痕ちゅうとうしこん Noun English jmdict 1 noun (common) (futsuumeishi) extractor mark (on a cartridge) See also: 蹴子痕 (しゅうしこん)
筒子ピンズ Noun English jmdict 1 noun (common) (futsuumeishi) mahjong dot tiles;circle tiles from chi Other forms 餅子 【ピンズ】