The RM class was China's last steam passenger design, a late 1950s development of the successful pre-war SL6 Pacific, which became the standard passenger class.
The RM class was China's last steam passenger design. China's last steam passenger design was a late 1950s development of the successful pre-war SL6 Pacific. China's last steam passenger design became the standard passenger class. China's last steam passenger design was a late 1950s development of the successful pre-war SL6 Pacific.