“G231”重定向至此。关于高速铁路列车车次，请见“沪青高速动车组列车_(上海至青岛)”。231国道（或“国道231线”、“G231线”“嫩江—双辽公路”）是一条位于中国的南北走向国道，起点是黑龙江省嫩江县，终点是吉林省双辽市。[1][2]
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途经城市
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