Prosečne GPS koordinate za poštanski broj 631-831: 35.161, 128.385

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Spisak gradova:
>> Jinjeon-myeon/진전면 631-831, Gyeongsangnam-do/경남, Masan-si/마산시, Geumamri/고사리, GPS koordinate: 35.16129,128.38501
>> Jinjeon-myeon/진전면 631-831, Gyeongsangnam-do/경남, Masan-si/마산시, Gosari/금암리, GPS koordinate: 35.16129,128.38501
>> Jinjeon-myeon/진전면 631-831, Gyeongsangnam-do/경남, Masan-si/마산시, Pyeongamri/여양리, GPS koordinate: 35.16135,128.38507
>> Jinjeon-myeon/진전면 631-831, Gyeongsangnam-do/경남, Masan-si/마산시, Yeoyangri/평암리, GPS koordinate: 35.16135,128.38507