Dwarves of Khazad-dûm
From Tolkien Gateway
The Dwarves of Khazad-dûm were the Dwarves of Durin's folk who mined and worked mithril for long ages in the halls of Khazad-dûm, and who had the friendship of the Elves of Eregion during the Second Age.
The Dwarves of Khazad-dûm were the Dwarves of Durin's folk who mined and worked mithril for long ages in the halls of Khazad-dûm, and who had the friendship of the Elves of Eregion during the Second Age.