Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Mardum Chain Vest Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Mardum Chain Vest suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Similar Items
The 9 items nearest to Mardum Chain Vest (item level 50) in item level among Armor > Mail, Chest slot, from item level 39 to 60.
Blizzard numbers items as they are created, so the named items next to ID 134390 (134385 to 134395) were usually added in the same batch as Mardum Chain Vest: the same quest line, zone, vendor or reward set.