1)High quality and competitive price 2)Stable performance used in ... susceptible to demagnetization when exposed to elevated temperatures. 2.Characteristics: 1.Super strong Br Resident induction. 2.Excellent demagnetization resistance capability ... 30SH-45SH, 30UH-40UH, 28EH-38EH, 28AH-35AH4. Shape: Disc(Cylinder), Block, Ring, Countersunk, Segment and more, trapezoid, irregular shape, customized shapes ...