Yantai Sanhuan Lock Group Co., Ltd., one of the top ten brands of locks, was founded in 1930, a time-honored brand in China, a famous brand in Shandong, and a high-tech enterprise dedicated to the development of cutting-edge technology in the modern security access control industry

Yantai Sanhuan Lock 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 has more than 3,000 employees, including 289 engineering and technical personnel. The company's technical equipment, management level, scientific and technological strength, development ability, and economic indicators have been among the best in the same industry in the country, and its scale, efficiency, market share, and export earnings rank first in the same industry in the country.

The company has 11 subsidiaries, 1 branch, 1 multinational joint venture company and 1 national enterprise technology center. It is the chairman unit of the lock making branch of China Hardware Products Association, China Lock Development Center, Shandong High-tech Enterprise, the founding and permanent member of Yantai Charity Federation, and "Three Rings" is a time-honored brand in China.

The company adheres to the enterprise 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 the technical support to strengthen original innovation, integrated innovation and introduction, digestion, absorption and re-innovation. Committed to the development of cutting-edge technology in the modern security access control industry, and constantly use electronic information, computers, biometric technology and other high-tech grafting to enhance the traditional lock industry, and gradually realize the company's product structure adjustment and business mode transformation.

The company's main business has developed from a single lock industry to the production of auto parts, deep processing of non-ferrous metals, electroplating, printing and other industries, and the market field has also expanded from the traditional civilian hardware to military security, government public security, commercial security, home security and other market areas.

The company has 76 national patents, including 14 invention patents; It has undertaken 30 technological innovation projects at or above the provincial level, including 10 national technological innovation projects and 15 key technological innovation projects in Shandong Province; Among them, there are 14 projects to fill the gaps in China; He has won 7 scientific and technological progress awards at or above the provincial and ministerial levels, and presided over and participated in the formulation of 15 national and industry standards.

Since 1957, Sanhuan products have entered the international market and sold well in more than 180 countries and regions in the world.