As Mr Smartbear says you could polish out the scratches and dents and you could reproduce the 'brushed' aluminium finish with wire wool, scotch pads or sanding sheets but it would never look as original.
There would need to be a protective clear coat finish applied.
You could only do this with the trim on a work bench and it would seem logical with it out to either replace it, spray it or cover it.
Some of the dents look quite deep, no idea what idiot would do that or how he would do it as it doesn't look accidental.
Best of luck whatever you decide to do.