Standard Trombone Vertical Key Marching Trombone,B- Flat Tube,Bb- Tuned Marching Trombone Musical Ins Valve Trombone

This trombone has a balanced design that provides a comfortable instrument position for young players.
Exquisite workmanship, suitable for musical instrument lovers and trombone practitioners.
Tone:Вb
Yellow brassOuter pipe:
Bell mouth: Yellow brass
Size: Inner tube12.4mm,caliber203mm
Craft: Lacquered gold
Characteristic: The intonation tone is very good Has a very strong penetrating power and expressive power
Design for:Test/ Professional Performance
Brass Piston Tube: It not only improves the durability, but also improves the sound effect, but also improves the air density, flexible sliding, and long service life.
High- quality brass bell mouth: Using improved paint technology, bright color, wear resistance and good adhesion. Does not affect the tube wall vibration. Normal use and maintenance to maintain bright color.
Comfort button: The layout of the buttons is reasonable and comfortable to operate, and the performance is handy, effectively preventing hand slip and reducing unnecessary mistakes in the performance.
Nickel- plated spring drain valve: High hardness, not easy to fade,durable.
Easy to sound from science: According to aerodynamics, it calculates airflow,resistance,strength, and pressure, and adopts fine numerical control design. Every arc is refined to reduce air resistance After mastering the technique, even a very small child can easily sound.
Safe and non- toxic lead- free soldering: Adopt lead- free soldering technology, environmental protection and sanitation Lead- free soldering is non- toxic and harmless, natural and environmentally friendly.
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