ChongQing, China, May 23, 2019 — The National Surveying and Mapping Skill Contest of Vocational College Student opens it door in ChongQing Vocational Institute of Engineering, 89 teams entered the final. Totally more than 300 students and 300 teachers, refrees and guests from 28 provinces and military attended this contest.

KOLIDA KTS-462 total station, K5 GNSS receiver, DL-07 digital level are appointed as the official instrument for conpetition.