北京六合伟业科技股份有限公司
Exhibit Profile：
Liuhe specializes in designing and manufacturing downhole survey instruments, including calibration stand, single & multi shot, wireline steering tool, MWD, GYRO, and borehole survey instrument. The products are mainly applied in the oilfield, coal mine, geological exploitation, non-dig construction, and water conservancy.
Liuhe specializes in designing and manufacturing downhole survey instruments, including calibration stand, single & multi shot, wireline steering tool, MWD, GYRO, and borehole survey instrument. The products are mainly applied in the oilfield, coal mine, geological exploitation, non-dig construction, and water conservancy.
Website：http://www.liu-he.com