Yantai Tri-circle Lock Industry Group Co., Ltd founded in 1930 is the birthplace of Chinese modern locks manufacturing industry.

Tri-circle Group consists of 10 subsidiaries, one branch, a multinational joint venture company and a state-level R&D center. It is the chairman unit of Locks Branch of China National Hardware Association, China Locks Development Center, high-tech enterprise in Shandong Province, a founding and permanent member of Yantai Charity Federation.

Yantai TRI-CIRCLE Door Control&Security Co., Ltd is a subsidiary of Yantai Tri-circle Lock Industry Group Co., Ltd, which was formally founded in April 2011 with a registered capital of RMB10 million. The products include mortise lock, brass cylinder, casement window arm operator and some punching products related with locks, which are sold throughout the country and all over the world, more than 10 countries and regions.

Since establishment, the company has been committed to diversification, expanding the scope of business. The company takes "Tri-circle" products as a link and integrity services as a purpose to expand the sales of new products on the basis of the stability of the main products. From hardware to machinery and equipment, the company gradually achieves diversification and heavy-duty products to enhance the company's overall image.

The company has export and domestic business departments, with a capable, efficient sales staff and a nationwide sales and service network to supply high quality and perfect service for customers at home and abroad.

The company will maintain Tri-circle group's enterprise spirit: Professionalism, dedication, innovation, ru le the roost, to build up the strength, and really make "Tri-circle" products bigger and stronger.