D2: Zhangjiakou-Sanggendalai-Dongwu
D3: Dongwu-Xing'an Ligi-Aershan-Hailar
D4: Hailar-Manzhouli
D5: Manzhouli-Hulun Gölü-Heishantou-Genhe-Enhe
D6: Enhe-Shiwei-Moerdaoga
D7: D8:
D9: Qinhuangdao-Beidaihe
D10: SON