. . "Engineering Mastery I is a type of engineering skill. Your expertise has resulted in improvements to your crafting and merchant skills. Title: Trader Level: 70 Experience: 7,626,600 Previous skill: Engineering Expertise VI Next skill: Engineering Mastery II"@en . . . . . "Engineering Mastery I is a type of engineering skill. Your expertise has resulted in improvements to your crafting and merchant skills. Title: Trader Level: 70 Experience: 7,626,600 Previous skill: Engineering Expertise VI Next skill: Engineering Mastery II"@en . . . . "Engineering Mastery I"@en . . . . . . .