(QDGK) is a professional science & technology instrument company, including selling and renting marine and geophysical instruments. We have excellent cooperator with ocean university of China, and many other scientific research centers and manufacturers.

QDGK represents JW Fishier, WTW, Marine Magnetics, NKE, SIG, ICI, and SRI and so on. QDGK????????? instruments including magnetometers, THP , CTH, side scan sonar, streamer, current meters, buoy, boomer system, high quality thermal infrared cameras ...