Qingdao Haituo Precision Instrument Co., Ltd., founded in 2010 and located in Laoshan District, Qingdao, is an enterprise specializing in the production and sales of gear measuring centers and gear measuring instruments. It integrates the top gear measuring technologies in China and is based on high-precision mechanical quality and absolutely stable systems. Now Haituo is actively seeking international cooperation and is determined to make Haituo measuring instrument the standard of measuring instrument.

In 2015, Harbin Tonghe Optical Precision Machinery Co., Ltd. (Gear Business Department) was established in cooperation with Harbin University of Technology. Its predecessor was the equipment manufacturing center of Harbin University of Technology. At present, the company has settled in Heilongjiang Industrial Technology Research Institute and Qingdao Blue Silicon Valley. The company mainly provides various kinds of precision and ultra precision machining and gear measuring center and other equipment for the national defense and civil high-accuracy equipment manufacturing field, undertakes the research and development tasks and entrusted processing tasks of various optical, mechanical and electrical non-standard equipment, special equipment and complete production lines, and also provides technical consulting and services for optical, mechanical and electrical equipment.