Can the faces on these AutoCAD blocks be colored?

I am trying to go from AutoCAD to sketchup. I’ve attached a file of two conveyor blocks. These came from an AutoCAD dwg. I really need for varying faces on these blocks to be different colors. I brought them in as a straight AutoCAD dwg. Can what I need be done easily? Do I need to export out of ACAD to something besides .dwg before I bring it into sketchup?Conveyor blocks.skp (3.0 MB)