We have engaged in engineering survey for many years and got a lot of experience in this field. There are manyadvanced equipments in our company, such as auto drilling, hydrology and water well drilling rig, engineering driller,transport vehicles, hoisting, generators, etc. We provided professional survey and design software in analysing thesurvey data and programming the report, all the worarcomputerized and digital. We have completed the preliminarysurvey and construction survey about 32 expressways which are more than 30 km long (among all of these, 13expressways are more than 40 kilometers long, 21 expressways with tunnel structure, and the longest tunnel is up to16km) and several expressways geological survey, engineering supervision and consultation. We keep clear of the ideabrand

  effect, to ensure the great reputation, all the survey and supervision quality is over 95%, and most were favourablynoticed by the owners and the sufficient affirmation.