沙格尔 Aurora 低音长号 Bb/F/Gb 调 (Schagerl made new valve)

Tuning: Bb/F/Gb

Bell size: 0.98" 250mm

Bell material: yellow brass or gold brass

Valve bore size: 0.578" 14.45mm (Schagerl valve)

Slide bore: 0.562" 14.27mm