| 摘要 |
PROBLEM TO BE SOLVED: To provide a new ragging material having various useful uses, and to provide a method for enabling an effective recovery of a nonmagnetic metal piece of being so far difficult, by using this ragging material.SOLUTION: A ragging material (10) is formed by kneading magnetic stainless powder (14) in a granular base material (12), and is provided to be inputted in an under-net air chamber type wet specific gravity sorter. This ragging material may be formed by forming magnetic stainless steel in a grain shape. |
