Jiangsu Sunzo Spring Elasticity Technology Co., Ltd. is a mixed-ownership enterprise established with the participation of China National Nuclear Corporation. The R&D center is located in Nanjing, Jiangsu, while the production base is situated in Sihong, Jiangsu.

Sunzo specializes in the research and development, production, and sales of high-quality elastic components such as disc springs, disc washers, and wave springs. The products are applied in various fields including nuclear power, aviation, aerospace, mili-tary, hydrogen energy, ultra-high voltage, automotive, wind power, shipping, construction bridges, petrochemical, construction machinery, metallurgy, and more.

Sunzo has established in-depth cooperative relationships with several key universities and is a quality partner to many leading companies in the industry. The company boasts a professional product R&D team and a modern testing center. Sunzo has participated in the formulation of international ISO disc spring standards and national standards. The company has successively passed various quality management system certifications, including ISO 9001, IATF 16949, ISO14001, ISO45001, and has obtained over 40 patents. It possesses a complete industrial chain from raw materials to specialized equipment and product manufacturing. The company's environment is beautiful with complete facilities, spanning an area of 60 acres, and it owns multiple self-developed production lines. Sanzhong is dedicated to providing the best elastic technology solutions tailored to customer needs, earning the trust of various high-end clients both domestically and internationally.