part number

All the current manufacturing is done in China. With

the exception of the MacPro models.

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.

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