What happens when the sewing machine is always wrinkled?
General 9 to 14, is our commonly used models.
You can take a closer look, your needle tip on the side are engraved with the model.
There are wrinkled, and can be used for trumpet needle.
If you light tone, it will only be more loose.
When the thread is slightly tight, the bottom line is relatively loose, take the lock core out to adjust, adjust the point.
