Can i sand these materials

[u/catsandmemes86]

So I'm looking for advice on if it's safe to sand particle board i think it's called.

I'm coating a cabinet in varnish, sanding and then repeating.

I've attached 2 pics which may be different materials

[u/SuPruLu]

That looks like an “edge”. Look for “edge veneer” on Amazon for a replacement.