​降B調小號

JP251SW  

吹口管經Smith-Watkins所設計, 可調式1&3調音管

調性: 降B調

​號口尺寸: 123mm

吹口管尺寸: .459''

活塞式按鍵: 蒙耐合金

樂器排水口: 2

表面處理: 鍍銀

​Key: Bb

Bell Size: 123mm (4.84")

Bore: 11.65mm (0.459")

Waterkeys: 2 (Lever)

Finish:Silverplate

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