We, CQBTSK/WTS come from P.R. China and our product is geophysical exploration instrument such as AC/DC resistivity & IP instruments, engineering seismograph, proton magnetometer, sonic instruments, radioactive instruments and more than twenty types/kinds of accessories. Takes the largest stake in Chinese of geophysical instruments market. Now, CQBTSK/WTS is entering international market and has got applications in UAE, Russia, Pakistan, Iran and African countries.