描述

三键立键上低音号 型号：LDO740 调别：Bb 外观：镀金/镀镍 材质：进口黄铜管体
白铜变音管 尺寸：管径13.4mm 喇叭口径208mm
Three key vertical key
on the bass
Model：LDO740
Key: B
Finish: Gold plated/ nickel plating Material:Imports of brass body
Copper-nickel alloy change tube
Size: Bore 13.4mm
Bell Diameter 280mm