Do you need to angle your curtain rail? With this angle, you can combine Gardinex curtain rails to have the option of letting your curtain solution also cover a corner.
Angle 90 degrees is used together with Gardinex curtain rails in complete packages with the help of joint part. Remember to support the rail at the joint with extra holders so that the rail remains stable and does not fail.
If you assume that a curtain rail sits parallel to the window, then this angle goes away from you, i.e. towards the window. Angle in the other direction can be found here.