Building Solution International Enterprise (BSI for short) is an enterprise that registers in California according to the law of the USA. BSI is a corporation which specializes in the design, research and development and manufacture of excellent grade products conforming to standard of the United States. For the design and research & development of products, we extremely insist on innovative reforms, artistic appearances, simple installation, security and reliability. No matter what the appearance design or the machinery structure is, BSI makes every effort to keep improving our products.

BSI has been keeping constantly progressive all the time. With the accumulation of experience -- combining the modern electronic technology with machinery structure, BSI has changed into a company having more high technology from a specialized hardware design manufacturing company. Applying the modern electronic technology for producing mechanical hardware, our company is pretty outstanding in the electronic hardware industry and our emergency exit products include electric push bar devices, electric electronic locks, hotel locks, the automatically-controlled doors, Grade 1 fire exit devices, etc.

BSI completely carries out the process of manufacturing all the products according to the quality management system of ISO. No matter in the course of purchasing materials or production, BSI has been setting up a suite of strict systems, and has been establishing cooperative relationships with manufacturers meticulously. Therefore, we ensure the quality of all our products so as to meet the higher requirements and make our customers more satisfied.

All the products of BSI comply with the national standard system of electronic machinery and electric electromagnetic locks, and American National Standards Institute (ANSI) or Building Hardware Manufacturing Association (BHMA) requirement. The products of BSI entirely accord with the authentication of the U.S. Underwriters' Laboratories (UL) and fire prevention. As for the emergency exit products, they comply with the U.S. Public Security Physiology Disablement Safeguard.

The products of BSI have been applied successfully to countless buildings, factories, hotels, markets, public buildings and public transportation fields -- including governments, commerce areas, schools, airports, etc. Definitely, BSI will provide our consumers all around the world just as in the past with products of remarkable quality, security and reliability. Users are satisfied with our products.