About Apple Product Part Numbers...

Hi!

Good time

Please answer my question if possible …

Apple products sold in stores with any Part Numbers

For example:

LL USA

LZ Chile, Paraguay, Uruguay

MG Hungary

NF Belgium, France, Luxembourg

PL Poland

PO Portugal

PP Philippines

RO Romania

RS Russia

.

.

.

and etc….

Quality standards is different in Part Numbers?

For example, in some stores LL/A part numbers is more expensive than other part numbers for sale!