YFG-812/812C บาสซูน ยกเลิกการผลิต
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1. Right-hand top F# roller
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2. Right-hand thumb F# rollers
3. Right-hand E rollers
4. Right-hand Bb roller
![](/th/files/special_orders_5_34906f1a078bd1d9756eca9c9de7fe17.jpg?impolicy=resize&imwid=240&imhei=109)
5. Right-hand pp slide system
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6. Right-hand Eb trill key*
![](/th/files/special_orders_7_e75f84c416cd96a7d5fb8ee6ef7c715c.jpg?impolicy=resize&imwid=240&imhei=109)
7. Left-hand rollers for C# & pp
8. Left-hand low C & low D rollers
![](/th/files/special_orders_9_8c5a5b94e0c6b91ce7362235e2126578.jpg?impolicy=resize&imwid=240&imhei=109)
9. Left-hand Eb trill key*
![](/th/files/special_orders_10_e9a2fbf6906a413692f4479b6afc8f40.jpg?impolicy=resize&imwid=240&imhei=109)
10. Joint hinge
![](/th/files/special_orders_11_026baa06939f0bbf5a4c85103ac6c2b0.jpg?impolicy=resize&imwid=240&imhei=109)
11. A-pp arm connecter
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12. Silver tonehole tubes
*Please note that either 6. or 9. may be ordered, but both cannot be installed on the same instrument.