Coordinate GPS medie per codice postale 407-818: 37.53, 126.731

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lista delle città :
>> Jakjeon 1(il)-dong/작전1동 407-818, Incheon/인천, Gyeyang-gu/계양구, 117-130/117-130, coordinate GPS: 37.53026,126.73071
>> Jakjeon 1(il)-dong/작전1동 407-818, Incheon/인천, Gyeyang-gu/계양구, 147-148/147-148, coordinate GPS: 37.53028,126.73073
>> Jakjeon 1(il)-dong/작전1동 407-818, Incheon/인천, Gyeyang-gu/계양구, 169-299/169-299, coordinate GPS: 37.53032,126.73077