... (B) as their main ingredients and is susceptible to demagnetization when exposed to elevated temperatures. 2.Characteristics: 1.Super strong Br ... drives ,Magnetic resonance imaging , common daily use and so on.8. Advantages:Own ourselves R&D center, Quality control ... tolerance, process cost and delivery.9.Surface Treatment Method: a)Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper ...