Working on the surfaces ofimported Geometry

I have imported a geometry in salome, i tried to work on the surfaces of the geometry, like splitting the surfaces, removing unnecessary edges, creating the washer lines around the holes.
anyone have suggestions, how to overrcome these things.
your efforts will bre appreciated.
thank you

Hello kishor

I am just a simple user, not a programmer. My experience in importing faces in *.brep format is cut possible. I have not tried any other way yet.

Question: Why is the problem not solvable in the original CAD software?

With kind regards