CAMA (Luoyang) Electromechanic Co., Ltd (Original named Nanfeng), affiliated with China Airborne Missile Academy, is the biggest and leading engine test bench manufacturer in China.

in 1988, CAMA exclusively introduced eddy current dynamometer technology from Germany ZOLLNER GMBH. With military manufacturing history of fifty-year, advantage of quality control system in airborne enterprise, CAMA successfully sold about 5000 sets of engine test benches to more than 800 customers all over the world.

Nowadays CAMA eddy current dynamometers hold over 85% market share in China, products are exported to America, Australia, Russia, Turkey, Malaysia, Vietnam, Laos, etc. About 5,000 sets of CAMA eddy current dynos are running in CAMA's more than 800 customers' company. CAMA is the only one eddy current dynamoameter manufacturer in the world that can compare with and same to that of AVL , because two companies' eddy current dynamometer technology were same introduced from Germany Zollner.

The main product not only include eddy current dynamometer, but also AC dynamometer, various auxiliary conditioning systems, and high-integration containerized test cells for engine, automobile parts and powertrain testing.