Gjennomsnittlig GPS-koordinater for postnummer 301803: 39.532, 117.536
Notering byer:
>> Huanxizhuang Township/欢喜庄乡等 301803, Tianjin/天津, Baodi District/宝坻区, GPS-koordinater: 39.53238,117.5361
Notering byer:
>> Huanxizhuang Township/欢喜庄乡等 301803, Tianjin/天津, Baodi District/宝坻区, GPS-koordinater: 39.53238,117.5361