Complex sentence: Numbered in the 3651 − 3670 range, they were reclassified 解放8 (JF8) class in 1959, and the last engines of the class were retired in 1990.
Split into simpler sentences: Numbered in the 3651 − 3670 range, they were reclassified 解放8 (JF8) class in 1959. Chinese Locomotive Lists The last engines of the class were retired in 1990.