金鹰重工：铁路部门投用金鹰重工研制的大型养路机械等装备护航春运

Group 1 - The core viewpoint of the article highlights that during the Spring Festival travel season, the railway department utilized large-scale maintenance machinery, heavy rail vehicles, and catenary work vehicles developed by the company to ensure the safety of infrastructure maintenance and power supply for passengers [2] Group 2 - The company emphasizes the use of high-precision and intelligent rail engineering equipment to safeguard the travel experience of passengers returning home [2]