Galvanized steel. It lasts longer and is less affected by chemicals and saltwater if you choose to go that route. I do suggest saltwater. It needs for less maintance than a pure chlorine pool.
Go with the aluminum if you can afford it.
Aluminum does not rust.
It depends on what you want to do with it. Galvanisation usually involves zinc anyway.
Aluminum is not the best material for a garden trowel, while very light, it is too soft. A better material would be steel or even better stainless steel.
Aluminum is generally considered better for the environment than glass because it is more easily recyclable and requires less energy to produce.
The walls of some above ground and some inground vinyl liner pool kits are made of aluminum.
It depends on the specific application. Galvanized steel is generally stronger and more durable, making it suitable for outdoor use and in applications where strength is important. Aluminum is lighter and more corrosion-resistant, making it a better choice for applications where weight is a concern or where exposure to moisture is a factor.
Inground vinyl is better, their is less exposed part to the oxigene, therefore, last longer.
Germanium conducts electricity better than aluminum or helium. Germanium is a semiconductor material with moderate conductivity, while aluminum is a metal with higher conductivity. Helium is a non-metal and is a poor conductor of electricity.
Stainless steel is much better than galvanized for use as a zip-line.
Galvanized steel is better for plumbing in a bathroom sink. It lasts a lot longer than PVC.
The simple answer is that the case in question is made of 24 gage galvanized high carbon steel. SGCC is a galvanized high carbon steel. It is Harder than typical steel, and has a thin coating of electro-statically bonded zinc that prevents it from oxidizing. the 0.6mm is the thickness of the metal being 6 tenths of a millimeter also known as 24 gage steel. As a computer case material it is slightly heavier and significantly strong than Aluminum and plastic, provides better heat management than Plastic, but not as good as Aluminum. it is usually only used in the frame of a computer case to hold the internal components, however it also can be used to make the side panels. Sorry for replacing the original answer in its entirety but it was incorrect.