one of the important infrastructures of the times. based on beidou satellite system (compatible zhongdi overseas zhongyang construction co., ltd.-hunan zhongyang construction engineering co., ltd. was restructured by sinopec zhongnan petroleum bureau engineering company. the company is mainly engaged in road and bridge engineering, municipal engineering, foundation and foundation, engineering survey, hydrogeological survey, drilling and geotechnical engineering governance, overseas engineering hunan zhongyang construction engineering co., ltd. was restructured by sinopec zhongnan petroleum bureau engineering company 1 shenzhen cheng'an construction inspection and appraisal co., ltd. specializes in housing safety inspection, undertakes industrial and civil buildings and entertainment venues (internet cafes, 30 people