Steel Research Nak Testing Technology Co., Ltd. (stock code: 300797) is a second level unit of China Steel Research and Technology Group Co., Ltd. (Steel Research Institute), a central enterprise. It is a high-tech innovative enterprise specializing in the research, development, and application of analytical instruments, equipment, and analytical testing technology. The main services or products currently provided by the company include analytical testing instruments, third-party testing services, standard substances/samples, proficiency testing services, and other testing related products and extended services. Steel Research Nanok is not only a leading enterprise in the manufacturing of analytical instruments and equipment in China, but also one of the research institutions with the most complete range of instruments and the strongest comprehensive strength in the field of element detection and analytical testing technology in China. Relying on the National Steel Material Testing Center and Instrument Industry Base, the company and its subsidiaries have led the revision of 7 international standards, participated in the revision of more than 20 international standards, and formulated over 170 national and industry standards; We have developed over 300 types of home grade standard materials/samples. Strive to become an influential international competitor in the field of testing instruments and equipment, an authoritative institution for material characterization, evaluation and certification with international influence, and a provider of comprehensive solutions. The products of Steel Research Nanok Analytical Instruments mainly include: direct reading spectrometer, carbon sulfur analyzer, oxygen nitrogen hydrogen analyzer, ICP spectrometer ICP-MS、 Advanced detection equipment such as soil heavy metal detector, food heavy metal detector, wavelength dispersive X-ray fluorescence spectrometer, metal in-situ analyzer, pulse melting time of flight mass spectrometer, testing machine, environmental monitoring equipment, etc., with multiple instruments filling the gap at home and abroad (the first set in China). The product quality is stable, the testing data is reliable, and the cumulative market share ranks among the top in the domestic industry. Some products have become industry benchmarks for similar products, and we have taken the lead in developing relevant instruments and testing standards. The Development History of Steel Research Nanok Analytical Instruments: In 1952, Steel Research Nanok originated from the establishment of the Iron and Steel Research Institute in the early days of the People's Republic of China. In 1956, the Instrument Group of the Testing Institute of the Iron and Steel Research Institute was established, and the Steel Research Nanok instrument industry began. In 1977, Steel Research Nanok developed China's first vacuum melting gas analyzer. In 1991, China's first pulse infrared oxygen analyzer was born here, and the industrialization of instruments officially began. In 2001, "Beijing Nanok Analytical Instrument Co., Ltd." was registered and established, and the instrument sector entered a rapid development track. In 2003, it led the Ministry of Science and Technology's "15th Five Year Plan" National Science and Technology Key Project "Scientific Instrument Research and Development". In 2006, Steel Research Nanok launched a high-quality domestic spark direct reading spectrometer, breaking the monopoly of nearly half a century abroad. In 2009, Steel, ICP products have entered the stage of industrial development. In 2011, we took the lead in undertaking the national major scientific instrument special project "Development of ICP Trace Analysis Instruments". In 2014, the direct reading spectrometer (Labspark 1000) won the first "Good Domestic Instruments" title. In 2014, the oxygen nitrogen hydrogen analyzer (ONH-3000) and carbon sulfur analyzer (CS-3000G) won the "Good Domestic Instruments" title. In 2015, the inductively coupled plasma mass spectrometer (PlasmaMS 300) won the highest domestic instrument award, the BCEIA Gold Award. In 2015, the food heavy metal detector (NX-100F) won the highest domestic instrument award, the BCEIA Gold Award. In 2017, the direct reading spectrometer (SparkCCD 6000) won the highest domestic instrument award, the BCEIA Gold Award. In 2019, the ICP spectrometer (Plasma 3000) won the highest domestic instrument award, the BCEIA Gold Award