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Surname กังทอง (Kangthong , กังทอง , Gungtong) , all over the world, is a rare cognomen. The surname กังทอง is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, กังทอง is the forename as well as the last name.
สมชาย, and พงษ์สิทธิ์