Ong-chheng-koān

Ong-chheng-koān (汪清縣, Tiâu-sián-gí: 왕청현) sī Tiong-kok Kiat-lîm-séng Iân-pian Tiâu-sián-cho̍k Chū-tī-chiu ê chi̍t ê koān.