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- Key of Bb
- Medium-large bore (0.460" / 11.68mm)
- Thick yellow brass leadpipe with duel-braced main-tuning slide
- Gold brass 1-piece bell (4.8” / 122mm)
- Precision lapped nickel silver outer and yellow brass inner tuning slides
- Precision lapped valve section with Monel valves
- Mid-weight valve casing
- Standard-weight top and bottom valve caps
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