For example, there is a big difference between Beijing Railway Bureau and Wuhan Railway Bureau.
Furthermore, on the same high-speed EMU, there are several units and personnel levels that can be seen by the whole train, such as bar attendants, flight attendants, cleaners, on-board mechanics and train conductors. The uniforms of each unit are different, and the styles of uniforms for men and women are different, so the colors of clothes are different.
China Southern Airlines: Look at the uniform color of female passengers. The crimson ones are basically ordinary flight attendants. The blue one is the flight attendant.
Male passenger looks at the bar: Every company is different. I only said that in our company, two bars are part-time flight attendants, one bar is full-time flight attendants and three bars are full-time security officers.
The system of male riding is different. These three bars are state owned. Two columns are double pay, and one column is the so-called vacancy.