We brought 12 year old Honda mower and this was the only thing in our container that was specially treated - steam cleaned for NZ$50 so much cheaper than buying a new lawnmower. And despite pressure washing it (all the labels came off!) it was still quite grubby so I'm not surprised they wanted to do a bit more to it.
Garden Table and 8 chairs, all wooden, cleaned with "teak cleaner" from B&Q that I suspect was just expensively packaged bleach. Passed without problem.
Vacuum - inspected, no problems.
Ladders - pressure washed but still had some paint/plaster/glue on them, inspected, no problems.