Core Viewpoint - The construction of the 108 New Line Expressway, a key transportation route in the western mountainous area of Beijing, is being led by the Shoufa Group, with the 7th section (Fozizhuang section) undertaken by China Railway 14th Bureau [2][4][6][8][11] Group 1 - The total length of the 7th section is 4.3 kilometers, with a bridge-tunnel ratio exceeding 70% [2][4][6][8][11] - During the May Day holiday, over 600 workers worked day and night, utilizing 200 pieces of equipment to advance the construction [2][4][6][8][11] - The project focuses on overcoming challenging engineering tasks, including the construction of the Heilongguan tunnel group [2][4][6][8][11]