Yantai Sanhuan Lock Industry Group Co., Ltd. was founded in 1930 and is the birthplace of China's modern lock manufacturing industry.

The company has a registered capital of 60 million yuan, covers an area of ​​340,800 square meters, a construction area of ​​151,300 square meters, and currently has more than 3,000 employees, including 289 engineering and technical personnel. The company's technical equipment, management level, scientific and technological strength, development capabilities, and economic indicators have always been among the best in the same industry in the country, and its scale, efficiency, market share, and export foreign exchange earnings are ranked first in the same industry in the country.

The company has 10 subsidiaries, 1 branch, 1 multinational joint venture and 1 national enterprise technology center. It is the chairman unit of the locking branch of the China Hardware Products Association, China Lock Development Center, Shandong High-tech Enterprise, Yantai Charity Federation, and the "Three Rings" is a time-honored brand in China.

The company adheres to the corporate spirit of "dedication, dedication, innovation and dominance", takes the technology center as the main body of innovation, and takes multi-way industry-university-research cooperation as technical support to strengthen original innovation, integrated innovation, introduction, digestion, absorption and reinnovation. We are committed to the development of cutting-edge technologies in the modern security access control industry, and continuously use high-tech grafting such as electronic information, computers, and biometric technology to enhance the traditional lock-making industry, and gradually realize the company's product structure adjustment and business mode transformation.

The company's main business has grown from a single lock manufacturing industry to many industries such as automotive parts production, non-ferrous metal deep processing, electroplating, and printing. The market field has also expanded from traditional civilian hardware to military security, government public security, and commercial security. Home safety and other market areas.

The company owns 76 national patents, including 14 invention patents; undertakes 30 technical innovation projects of various provincial level or above, including 10 national technology innovation projects and 15 key technology innovation projects in Shandong Province; among them, 14 projects filled in domestic gaps ; Win 7 Science and Technology Progress Awards at the provincial and ministerial levels and above, and presided over and participated in the formulation of 15 national and industry standards.

Sanhuan products have entered the international market since 1957 and are best-selling in more than 180 countries and regions around the world. They are the "fist products" of China's hardware products exports.