What is there in the recruitment of train drivers without obvious scars?

Tattoos According to the recruitment information of train drivers, there are no obvious scars, skin diseases and tattoos on the face, neck and hands. Train drivers, also called locomotive attendants, are under the management of the locomotive depot under the railway administration. Drivers can be divided into drivers and assistant drivers according to their grades, and vice drivers of diesel locomotives according to the types of locomotives they drive.