Prosečne GPS koordinate za poštanski broj 630-810: 35.234, 128.585

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Spisak gradova:
>> Yangdeog 1(il)-dong/양덕1동 630-810, Gyeongsangnam-do/경남, Masan-si/마산시, 7-17/7-17, GPS koordinate: 35.23385,128.58472
>> Yangdeog 1(il)-dong/양덕1동 630-810, Gyeongsangnam-do/경남, Masan-si/마산시, 800-880/800-880, GPS koordinate: 35.23394,128.58481
>> Yangdeog 1(il)-dong/양덕1동 630-810, Gyeongsangnam-do/경남, Masan-si/마산시, 89-139/89-139, GPS koordinate: 35.23389,128.58476