Phase detector High voltage wireless phase detector Voice phase detector Wireless high voltage phase detector DC high voltage generator Relay protection tester Power frequency withstand voltage test device www.shsjdq.cn Shanghai Shuangji Electric Co., Ltd.

Shuqi Technology is a global supplier specializing in 4D cinema and 5D cinema systems. Our 4D/5D dynamic seats have been used in science museums, theme parks, entertainment centers and other places in more than 60 countries around the world. They can be combined with various forms of expression such as surround screen cinema, dome screen cinema, flying cinema, etc.

Shanghai Yinwei Technology Co., Ltd. is a well-known domestic light and shadow engineering manufacturer. Its core business includes projection fusion, immersion, folding screen, circular screen, interaction and splicing. Its business scope includes restaurant banquet halls, multimedia exhibition halls, large-screen classrooms and conference rooms, cultural tourism night tour light and shadow exhibitions and other projection projects.

SIGMA, manufacturer of high-end cameras and lenses for both the Photography and Video market

The Chinese website of the camera and lens manufacturing company SIGMA. Here you can find information about our company and our products, support, repairs and inspections, as well as news, updates and brand content.

Sigma Singapore specializes in camera lenses and optical products.

Sigma Corporation is a Japanese based family owned manufacturer of cameras, camera lenses and camera accessories. Founded in 1961, Sigma Corporation prides itself on high quality and innovative photographic and cinema equipment.

Australia’s premier seller of optics & hunting equipment

Sigma is a Japanese company that manufactures cameras, lenses, flashes and other photographic accessories and was founded on September 9, 1961.

Sintec Optronics is specialized in laser, optics & laser machines.