VHSVietnam-Nha cung cap thiet bi GPS hang dau: GPS Garmin V, GPS Magellan, GPS Promak2, Promak3
GPS hang Trimber r3-r7-r8, Toan dac dien tu, may bo dam, thiet bi khao sat dieu tra rung, thiet bi lam nghiep, khi tuong thuy van, do dia chan bien, may do dong chay, phong chay chua chay, thiet bi thi nghiem moi truong