7 Cast-manufactured components of metal, namely, turbine blades being machine parts, turbine guide vanes being machine parts, and structural turbine components being machine parts, all of the forgoing other than for land vehicles; components of metal manufactured by means of investment casting, namely, turbine blades being machine parts, turbine guide vanes being machine parts, and structural turbine components being machine parts, all of the forgoing other than for land vehicles; components for turbines, namely, turbine blades, turbine guide vanes, and structural turbine components, all of the forgoing other than for land vehicles; structural turbine components in the nature of turbine blades and guide vanes, other than for land vehicles, and machine tools for the manufacture thereof; components for cast-manufacturing components of metal, namely, casting machine parts in the nature of wax patterns for investment casting, ceramic cores for investment casting of hollow components and wax patterns with ceramic cores for investment casting of hollow components; components for manufacturing by means of investment casting components of metal, namely, casting machine parts in the nature of wax patterns for investment casting, ceramic cores for investment casting of hollow components and wax patterns with ceramic cores for investment casting of hollow components; machine tools for manufacturing by means of investment casting components of metal