China's locks are mainly produced in Zhejiang and Guangdong, the competition between the two places has become white-hot in recent years, in the previous China's top ten lock king evaluation, the number of brands on the list is comparable, among which Yajie locks are frequent visitors in the major rankings. Yajie Hardware was established in 1990, it focuses on technological innovation, has more than 150 kinds of patented hardware products, in 2001 its original "pig ear" glass door lock, in the industry for the first time to apply mortise door locks to glass door locks, to solve the disadvantages of traditional glass door locks lack of security.

Yajie's factory is located in Foshan, Guangdong, covering an area of nearly 120,000 square meters, with more than 1,000 sets of advanced production equipment or automated production lines at home and abroad, modern workshops and complete supporting facilities, with completely independent production and processing capabilities.

The panel of Yajie door lock adopts 7 layers of electroplating, which is 1 layer of semi-bright nickel plating more than the traditional door lock, and the neutral salt spray test time is also twice as high as that of the industry, and the anti-corrosion performance of the door lock is stronger. The price is high, most models are more than 400 yuan, and the cost performance is not advantageous, but it is better in texture and feel.

Yajie has more than 100 first-class dealers in China, and nearly 1,000 stores across the country, and the convenience of purchase and after-sales is at the average level in the industry.