Affiliated enterprises are mainly engaged in the design, consultation, construction, maintenance, supervision, testing, highway advertising, greening and other businesses of highways, municipal roads, bridges and traffic projects. By the end of 2008, it had obtained 48 qualifications at all levels. Among them, Grade I and Grade II qualification of highway construction general contracting 1 unit; Grade I and II qualification of municipal engineering construction general contracting 1 unit; Second-level qualification for general contracting of port and shipping engineering construction1; First-class qualification of highway subgrade and pavement special project 1 unit; Secondary qualification of bridge special project1; Grade A qualification of highway engineering supervision is1; Highway maintenance level 1 qualification 1 piece, level 2 (a) qualification 4, level 2 (b) qualification 6; 2. Highway traffic engineering qualification; Communication monitoring and charging integrated system qualification1; Grade B qualification of highway engineering design and municipal public works design1; 1 Grade C qualification of architectural engineering design; The second-level qualifications for landscaping construction and advertising are1respectively; Grade B qualifications such as engineering survey, highway engineering test and detection, engineering bidding agency, highway (municipal, architectural) engineering consulting, surveying and mapping.
There are a large number of large-scale construction machinery and equipment at home and abroad, including Italian Magliani 1000, MIC5 175, DG4000, ACP4000, WBC200, WBC300, WBC500 asphalt concrete mixing stations and 10 water-stable mixing stations. Fogler ABG asphalt paver and Danish-145 paver each have 1 set; 2 sets of domestic MT8000 multifunctional pavers; Dresser grader and Carter milling machine in the United States each have 1 set; 2 D870 Dreiser ground machines; Chuanqi 1 10 loader; Komatsu Pc200 and Hyundai 55 excavators 3 sets; CC422, CC622, DD 1 10 imported double-drum rollers each have 1 set. By February 2008, there were over 200,000 yuan of construction machinery 12 1 set, including 48 construction machinery with over 500,000 yuan.