part number

So if you can't look on the device itself for manufacturing info (as the same model number can be built in different places), and are dealing with a different and newer serial number format than what's been discussed, you might ask Apple.

All the current manufacturing is done in China. With

the exception of the MacPro models.

Have a look at the serial number, though Apple is introducing changes to this format.

https://beetstech.com/blog/decode-meaning-behind-apple-serial-number