Rounded edge problem

[zsolt67]

Is there anything I can do with it?

[thomasteger]

You may have to increase the tessellation on your model upon import.

[zsolt67]

thank you for the reply
I cant find this option in import settings. this model comes from skethup 2013.
Sketchup makes arch from lines but very hard work to increase all arch 's segments.
I tripled the segments nothing changed :(ű
Sorry what is the wireframe material?

[thomasteger]

Double click on the material, and then select "wireframe" from the material pull down.

[zsolt67]

I done other test object, here is the wire frame material and glossy material.
I don't have idea what to do.
Is it a Sketchup related problem maybe?
Is the size affect this? The model has a 10mm radius