What do Bank order types mean?

Hello
Could someone explain me what do these Bank order types mean, please:

  • SEPA credit transfer
  • International credit transfer
  • National treasury transfer
  • International treasury transfer

Maybe you can give an example of usage?

hello

SEPA : Single Euro Payments Area

Thank you!
Do you know what the other types mean?

Is there any documentation explaining these bank order types?

What is the difference between « credit transfer » and « treasury transfer »?