Tianjin Tianhe Analytical Instrument Co., Ltd. is a high-tech enterprise specializing in the research and development of analytical instruments in Tianjin High tech Zone (formerly a military enterprise established in 1987). It was one of the early manufacturers of particle analyzers in China and is a member unit and permanent director of the Chinese Particle Society. The product has won the National Science and Technology Progress Award and invention patents. The company has obtained ISO9000 quality management system certification. After nearly 30 years of development and accumulated experience, the company's manufacturing technology is becoming increasingly mature. The company's main products include four series of particle analyzers, oil particle counters, osmotic pressure molar concentration analyzers, adhesion automatic detectors, and other drug testing instruments, with more than 20 products produced on a large scale. Among them, the industry brands GWF series particle analyzer and SMC series osmotic pressure molar concentration tester have been recommended by the National Pharmacopoeia Committee for their quality advantages and innovative technology, and have provided physical evidence and experimental data for the review of the new 2020 edition of the Chinese Pharmacopoeia multiple times. The YKJ series oil particle counter has received praise and orders from multiple testing centers, including the Air Force Metrology Station and the Aviation Industry Filter Product Quality Supervision and Testing Center (National Defense Science and Technology Industry Particle Size First Class Metrology Station). It can be widely used in aviation, aerospace, power, petroleum, chemical, transportation, ports, metallurgy, machinery, automobile manufacturing and other fields. The product performance indicators are comparable to similar foreign instruments, with high intelligence, easy and fast operation, reliable detection results, and cost-effectiveness advantages. Satisfactory service is highly welcomed by a large number of users and has a high market reputation. The product is listed and selected by most provincial and municipal drug testing institutes, large and medium-sized pharmaceutical factories, hospitals, and medical device testing institutions. There are over 3500 new and old customers nationwide, and some of them are exported.