短语词组短語Swivel l Pin 槳栓柱swivel hook pin 鏇轉大鉤銷子swivel -pin 轉曏節銷swivel pin boss 轉曏節主銷孔凸台butt swivel pin 下背帶環銷connecting swivel pin 背帶環軸steering swivel pin 轉曏鉸接銷 返回 swivel pin