zhengzhou oriole electronic (group) joint-stock co., ltd. (originally the state-owned 4057 factory) is a large enterprise of holding company owned by the state. it is an advanced one of the state second class and a henan provincial excellent new and hi-tech enterprise. there are 1300 staff members in the corporation, among which 600 belong to technical personnel. the corporation possesses six companies with their own investment or holding subsidiaries, nine directly-affiliated factories and affiliated companies. the capital assets is 225 million yuan. it is a diversified grouped enterprise with program-controlled exchangers, telecommunication, household electronic appliances, applied electronics as main products, and at the same time dealing with real estate trade and fine chemicals. our products involve diversified kinds, now our main export products include solar products, induction heating equipment, magnetic seperator, or series fogging machine, jet-motive sprayer, ic card gas meter, portable electronic scale, multifunctional charger, 007a wireless alarm system etc. many of them have been very popular with all over the world.