Gjennomsnittlig GPS-koordinater for postnummer 300454: 39.021, 117.569
Notering byer:
>> Guangminglihujiayuan/光明里(胡家园)等 300454, Tianjin/天津, Tanggu District/塘沽区, GPS-koordinater: 39.02075,117.56918
Notering byer:
>> Guangminglihujiayuan/光明里(胡家园)等 300454, Tianjin/天津, Tanggu District/塘沽区, GPS-koordinater: 39.02075,117.56918