The registration address of the department for the operation of the shining air pressure devices in east china city, guangdong province the registration authority is the market supervisory authority of the city of dong chong city and its legal representative is le fong. It operates in the following areas: air presses, dryers, gas tanks; installation, repair, maintenance and sale of hardware and electric parts; air press fittings; environmental protection equipment; general mechanical equipment; and electronic equipment。