... process of producing harmonica:Name: 24 hole 12 tune set-packing golden harmonicaModel: QM24A-17Material: copper reed plates ... A#,C, C#, G, G#, F, F#, E, B, D, D# tone hamonicaModel:QM24A-30Material: copper reed plates ... A#,C, C#, G, G#, F, F#, E, B, D, D# tone hamonicaModel:QM24A-16Material: copper reed plates ... A#,C, C#, G, G#, F, F#, E, B, D, D# tone hamonicaModel:QM24A-18Material: copper reed plates ...