Prosečne GPS koordinate za poštanski broj 630-852: 35.235, 128.49
Spisak gradova:
>> Naeseo-eup/내서읍 630-852, Gyeongsangnam-do/경남, Masan-si/마산시, Samgyeri/삼계리, GPS koordinate: 35.23455,128.4902
Spisak gradova:
>> Naeseo-eup/내서읍 630-852, Gyeongsangnam-do/경남, Masan-si/마산시, Samgyeri/삼계리, GPS koordinate: 35.23455,128.4902