Prosečne GPS koordinate za poštanski broj 689-843: 35.686, 129.227

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Spisak gradova:
>> Dudong-myeon/두동면 689-843, Ulsan/울산, Ulju-gun/울주군, Bonggyeri/봉계리, GPS koordinate: 35.68585,129.22722
>> Dudong-myeon/두동면 689-843, Ulsan/울산, Ulju-gun/울주군, Wolpyeongri/월평리, GPS koordinate: 35.68573,129.2271