Product Name: 3/4 Bb Key Cupronickel Piston Tuba (TU310G) Model NO.: TU310G Certification: ISO Brand: Aileen or OEM Place of Origin: Jiangsu, China (Mainland) Kind: Tuba Bore: 15mm Bell: 375mm Tuning Pipe: Yellow Brass Piston: Cupronickel Leadpipe: Yellow Brass Finish: Lacquer Case: Foambody Trademark: AILEEN or OEM Transport Package: Normal Exporting Package Specification: Tuba Origin: China(Mainland) HS Code: 92051000 Product Description 3/4 Bb Key Cupronickel Piston Tuba (TU310G)Features:- Name: 3/4 Tuba- Key: Bb- Bore: 15mm- Bell: 375mm Yellow brass- Tuning pipe: Yellow brass- Piston: Cupronickel- Leadpipe: Yellow brass- Finish: Lacquer- Case: ABS- Height: 991mm- We can also provide OEM service in light of your requirements or samples. And we have full experience on that!