precision injector and dont know what size the are?

[codeofdastreets]

I need help finding out what injector size my injectors are. There standard dsm style injectors made by precision and the number 33720 is on them.. Help please

 

[SpawnedX]

PTE injectors have the sizes etched into them, there has to be more.

 

[codeofdastreets]

PTE injectors have the sizes etched into them, there has to be more.

.. I feel like a newb.. completely forgot fic and pte have the part number ingraved in them, but the top of the injector has 17113814... So they are 680's.. thanks again..