Chongqing Gold Surveying Instruments Co., Ltd is in producing series of core drilling machine, series of anchor drilling machine, series of engineering drilling machine and directional drilling rig and hydraulic components. Chongqing Gold Surveying Instruments Co., Ltd has 4 core businesses involved in surveying GNSS product series, digital sounder series, GIS data acquisition system, marine engineering application integrated system, marine surveying, and marine mapping software products