The registered address of shenzhen city quiang science and technology ltd. Is located at the 23nd 402nd street of shenzhen city in shenzhen district in shenzhen, and is the shenzhen city market supervisory authority, represented by a legal person, and includes general operating projects: gas detection products, environmental monitoring products, safety protection products, instrumentation forms (without measuring devices), fire alarms, electronic alarms, detectors, audio alarms, development and sale of automatic fireballs and related electronic products; domestic trade; and import and export of goods and technology. (except for projects prohibited by laws, administrative regulations, decisions of the state council, restricted projects which require authorization to operate)。