Research, development, production, and sales of gas source products (high-pressure containers and supporting devices, special valves, high-pressure gas control components, high-pressure gas equipment, gas source vehicle assemblies),机电一体化 complete sets of equipment and accessories, and non-metallic material molded products (lithium-ion power battery casings and accessories, radomes, etc.), as well as technical consulting and technical services for the above products; import and export business of self-produced products and related technologies, except for goods and technologies restricted or prohibited by the state.