271132 Generating sets with spark-ignition engines/ other generating sets/ electric rotary converters

27113233 Generating sets with spark-ignition internal combustion piston engines of an output <= 7.5 kVA 27113235 Generating sets with spark-ignition internal combustion piston engines of an output > 7.5 kVA 27113250 Generating sets (excluding wind-powered and powered by spark-ignition internal combustion piston engine) 27113270 Rotary converters