Gjennomsnittlig GPS-koordinater for postnummer 300021: 39.132, 117.186
Notering byer:
>> Dongxingdajie/(东兴大街)等 300021, Tianjin/天津, Tianjin City/天津市, GPS-koordinater: 39.13194,117.18648
Notering byer:
>> Dongxingdajie/(东兴大街)等 300021, Tianjin/天津, Tianjin City/天津市, GPS-koordinater: 39.13194,117.18648