Prosečne GPS koordinate za poštanski broj 630-806: 35.228, 128.566

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Spisak gradova:
>> Seokjeon 1(il)-dong/석전1동 630-806, Gyeongsangnam-do/경남, Masan-si/마산시, 182-200/182-200, GPS koordinate: 35.22793,128.56647
>> Seokjeon 1(il)-dong/석전1동 630-806, Gyeongsangnam-do/경남, Masan-si/마산시, 277-287/277-287, GPS koordinate: 35.22794,128.56648
>> Seokjeon 1(il)-dong/석전1동 630-806, Gyeongsangnam-do/경남, Masan-si/마산시, 95-122/95-122, GPS koordinate: 35.22785,128.56639