Turbines, excluding those for land vehicles; gas turbines not for land vehicles; air compressors; steam turbines not for land vehicles; water turbines not for land vehicles, replacement parts therefor; precision cast and forged components for turbines and air compressors, namely, turbine blades and air compressor blades; components of gas turbines in contact with hot gases, namely, turbine blades; turbine gas mixers; turbine stators and distributor rotors; nozzles for gas turbines; blades for...