短語詞組短語knockout -pin plate 頂銷托板knockout pin location 頂出銷定位bottom knockout pin 下頂脫銷knockout pin plates 頂出板loose fitting knockout pin 松配頂出銷Threaded knockout pin 帶螺紋推桿Shouldered knockout pin 帶肩推桿Cold press dies -Threaded knockout pin 冷沖模 返回 knockout pin