Imported a file but can't determine some of the geometry

I've imported an STP file and ran the diagnostics/FeatureWorks on it in order to get all of the geometry to load. However, there is a portion that I cannot view. I don't know how some of the cuts/features were created, but I need to understand it in order to recreate this model into different sized diameters. Can anyone figure out how the original creator of this file added the cuts/angles of the geometry?

SolidworksParts And Features