Matching between parts problem
 

Hi, I have a problem of matching between parts.
Both in geometry and in the mesh scene it is noted that the two parts (to which two different types of mesh are associated, polyhedral and polygonal) are not perfectly matching. Yet the parts are the result of operations such as subtract and intersect .... etc.
How can I solve it?
Thanks

this is normal when you dont or cant enforce a conformal mesh between the parts and should be taken care of by your interface if carefully set and checked