From Phoenician actually

https://en.m.wikipedia.org/wiki/Phoenician_alphabet

Ah, the ol’Shaggy defence

I guess that companies like this one

https://youtu.be/5q54yLuJlKk?feature=shared

adhere to regulations, but it is not unimaginable that there are those who could make the same part and sell it under the table. It’s not even a necessity to own a CNC to cut this part out of a block of aluminium, an old-time milling machine and 20 hours worth of training are enough to get the job done.