Defect of production

We can see some defect which occures in the step of making an instrument.
Such defects has influence to the sound and intonation etc..

I show you some processes of the parts of an instrument.

Process of bell piece

»»»»»»»go to pictures of bell»»»»»»»»

!!Please see there is the mountain of the wrinkle having gone out in the bent curve in the bend photograph. !!
The outside of the bend curve is enlarged when stuffing is done and bent and the wrinkle is
generated internally in no relations what it is of stuffing because power to shrink works.






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