All of the items above are usually made from steel, brass, bronze and, less commonly, iron. Requirements for special heat resistance are low as no one would ever keep a poker in a burning flame. All the tools are just a part of the interior and mostly perform aesthetic and artistic function. The choice of subjects and manufacturers depends on the owner's willing to arrange an elegant fireplace area.
If you're wondering what it does and how it works, let me quickly explain it all for you. Basically, a fireplace blower will take the warm air from the fireplace and it blows it across the room. It's just like a fan, but it blows the hot air instead of cooling it. This spreads the warmth around and I no longer have to sit a few feet away from the fireplace to feel its effects.