Which company is stronger among the Second Bureau and the Three Companies of China Communications Construction Company?

It is relatively strong in high-speed construction. CCCC No. 3 Engineering Co., Ltd. mainly undertakes national and provincial key road and bridge construction projects. Its projects are located in Jiangsu, Shaanxi, Hunan, Gansu, Jiangxi, Qinghai, Shanxi, Guangdong, Anhui, Inner Mongolia, Zhejiang, and Shanghai. 23 provinces, autonomous regions and municipalities including Beijing, Hubei, Liaoning, Jilin, Henan, Guizhou, Guangxi, Chongqing, Yunnan, Xinjiang and Shandong, and participated in countries such as Yemen, Bangladesh, Jamaica, Bolivia, Costa Rica, Peru, Panama and Colombia. In terms of highway construction, it has undertaken more than 300 projects of various types, with a total mileage of more than 13,000 kilometers, including more than 6,300 kilometers of expressways and more than 3,100 kilometers of pavement projects. It has a comprehensive grasp of collapsible loess, soft soil, wind-laden sand, and expansive soil. , high liquid limit soil and roadbed filling technology under geological conditions such as high excavation and high filling. We have accumulated mature experience in asphalt cold recycling, foam asphalt and rubber asphalt construction, and have extensive experience in SMA, superpave, OGFC, epoxy Construction fields such as asphalt and poured asphalt pavement are at the leading level in the country, and pavement engineering has become the company's flagship product.