Highway engineering
Highway engineering is the traditional industry sector and central business sector of the company. From the completion and opening of the first expressway in Shandong Province, Jiqing Expressway, in 1993 to the completion and opening of the expressway in 2019, the mileage of the expressway in Shandong Province exceeded 6500 kilometers, ranking among the top in the country for more than ten consecutive years. The company has become a backbone construction force in Shandong Province's highway cons