Fiery Plate Gauntlets' is an objective of  which starts when you pick up in Blackrock Spire. You must be a blacksmith with a skill level of 275 to pick up the gauntlets. You will also get the plans for this item when you complete the quests.
Non-blacksmiths can have the Gauntlets crafted by blacksmiths with a skill level of 290 who also have the Armorsmith specialty.
- Patch 1.4.0 (2005-05-05): Tooltip modified to more appropriately describe the effects.