After receiving your items we want you to be happy with them for a very long time! We recommend using a normal soap and water solution to clean them. If your items need to be polished up a bit here are few things that work very well, Car wax, car polish and furniture polish.
Even though car washes are generally safe on powder coating we do not recommend having them spray the “wheel brightener” on the wheels or the store bought wheel cleaners. We do not know what chemicals are in them and don’t know what could happen.
For other items like wrought iron fence or items around the house dish washing soap is fine. As stated before car waxes and polishes or furniture polish will give a nice shine to the item.