1.Grade: 2,3,5,6,8,9 etc. 2.Good chemistry stability, strong anti-corrosion 1. Name: Alnico Pot Magnet.2. Characteristics: Compact crystal, high intensity, good chemistry stability, stong anti-corrosion, even elements, exceelent and magnetic performance, excellent temperature stability, highest usage temperature reach 500 degree.3. Quality control: ISO9001:2000, SGS stardard.4. Material grade: ...