Higher smithing skill allows you to learn higher level smithing plans. Blacksmithing plans can be found on trainers around the world as well as from quests and monsters.
Recipes of sol-aces6 of 507 known31 / 75
Rough WeightstoneKnown
Copper BracersKnown
Copper RodKnown
Sharpening WheelKnown
Rough Copper VestKnown