Your pens are exactly like ours - with a different language.
I have a different MAT number, but don't know what it means.
I have collected new supplies and inspected them.
It could be PL number is just for pills!
On box is the EU license number, EU/1/00/134/033.
UK doesn't make/store insulin.
I put that number in Google, and it came up with loads of info, all confirmatory, it's definitely Lantus!
Look on your box and do the same.
Of course, Arab and Turkey countries may have different numbers. I would give it a try though.
Sorry if it's getting confusing...