Research, development, production, and sales of: communication equipment, electronic products, electrical products, automobile parts and accessories, intelligent vehicle-mounted equipment, complete vehicle wiring harnesses, batteries and high and low voltage wiring harnesses, high and low voltage connectors, optical cables, insulation products, wires and cables, power transmission and distribution and control equipment, plugs and sockets, inverters, relays, high and low voltage switchboards, motor electrical control equipment, electric motors, railway locomotive and rolling stock parts, railway specialized equipment and accessories, urban rail transit accessories, lighting lamps, automotive lamps, electrical signal equipment devices, bearings, hydraulic components, valves, pump flanges, audio-visual teaching equipment, RF modules, coaxial touch screens, network equipment, optoelectronic products (excluding hazardous chemicals), industrial robots, molds, Class I medical devices, Class II medical devices, Class III medical devices, non-woven fabrics, meltblown fabrics, labor protection tools, packaging products; software and hardware development; processing of mechanical parts and components, product assembly processing, SMT processing of electronic components, processing of plastic and metal structural parts, processing of die-cast structural parts, processing of powder metallurgy parts; import or export of goods and technology (excluding goods and technology prohibited or restricted by the state).