Refinery

The Refinery [錬結] is where you can use swords that you no longer want or need to strengthen the stats of other swords. Refining can only strengthen Impact (打撃), Leadership (統率), Mobility (機動), and Impulse (衝力).

The stats added depend only on the sword used for Refining.

The first page lets you choose the sword you want to Refine, and the second page allows you to choose up to 5 swords as Refining material.

This can be considered an alternative to scrapping the swords in the [刀解] tab in the Forge.

Refining Values
Each sword provides different bonuses to stats for refining.