Laizhou Hengyi Testing Instrument Co., Ltd. (hereinafter referred to as "Hengyi"), as a leading technology enterprise in the field of hardness testing and new material preparation in China, is composed of a technical team with more than 10 years of research and development and production experience. The company was established in 2011 with a registered capital of 2 million yuan. Specializing in the research and development, production, and sales of various types of hardness testers, as well as the research and design of superhard diamond tools. The company provides material hardness solutions for military aerospace units, research institutes at all levels, key universities, and mechanical enterprises throughout the entire lifecycle, from new material research and development to large-scale testing, with advanced design concepts, exquisite production techniques, and strong scientific research capabilities. In 2012, Hengyi passed the ISO9001 quality system certification. Over the next six years, Hengyi has successively obtained relevant technical certifications from the National Defense Science and Technology Industry First Metrology Testing Research Center, China Academy of Metrology, Northwest National Metrology Testing Center, Nanjing Metrology Supervision and Testing Institute, Yantai Quality and Technical Supervision Bureau, and Yantai Metrology Institute. Step by step, it has moved towards specialization, systematization, and standardization, and its stable product quality has gradually gained recognition from distributors across the country. Laizhou Hengyi currently has over 80 employees, including more than 40 professional and technical personnel, a total of 8 master's, doctoral, and international student technical personnel, and 4 senior technical consultants. Their professional knowledge in materials, machinery, electronics, and rich experience in application fields provide strong technical support for our products. Hengyi is located in the famous national health city of Yantai, covering an area of over 4000 square meters. It is adjacent to the G18 expressway and Yantai airport, with convenient transportation, complete surrounding facilities, and a superior geographical location; The coastal high-speed railway that opened in 2019 will provide more fresh blood for the development of Hengyi. Laizhou Hengyi, with a strong technical team and research capabilities, adheres to the path of technological innovation, upholds the service standards of "all-round, high-quality, and fast", and aims to satisfy customers with our high-quality products and high-level services to global customers. Our hardness tester products are divided into Rockwell hardness tester, Brinell hardness tester, Vickers hardness tester, microhardness tester, multifunctional hardness tester, large online hardness tester, portable hardness tester, and industry-specific customized hardness tester according to their functions. Hengyi adheres to the business policy of "working together with dealers and providing sincere service", and works hand in hand with dealers across the country to develop together. With "win-win cooperation" as the starting point and "achieving others and oneself" as the pursuit, Hengyi sincerely serves the vast number of dealer colleagues, providing high-quality products, ensuring after-sales service follow-up, and doing a good job in logistics support for dealers. Hengyi sincerely hopes to exchange and cooperate with colleagues and technical talents from various instruments, develop together, and contribute to the development of metrology science in China!