Prosečne GPS koordinate za poštanski broj 251909: 38.139, 117.755
Spisak gradova:
>> Chengkou Township/埕口乡等 251909, Shandong/山东, Wudi County/无棣县, GPS koordinate: 38.13892,117.75451
Spisak gradova:
>> Chengkou Township/埕口乡等 251909, Shandong/山东, Wudi County/无棣县, GPS koordinate: 38.13892,117.75451