Prosečne GPS koordinate za poštanski broj 423-831: 37.483, 126.864

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Spisak gradova:
>> Cheolsan 2(i)-dong/철산2동 423-831, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 131-206/131-206, GPS koordinate: 37.48304,126.8641
>> Cheolsan 2(i)-dong/철산2동 423-831, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 208-215/208-215, GPS koordinate: 37.48303,126.86409
>> Cheolsan 2(i)-dong/철산2동 423-831, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 572-8/572-8, GPS koordinate: 37.48292,126.86398
>> Cheolsan 2(i)-dong/철산2동 423-831, Gyeonggi-do/경기, Gwangmyeong-si/광명시, 64-78/64-78, GPS koordinate: 37.483,126.86406