3.7.1 Magnetic ParticlesIron powder, divided according to pound, 2 kinds of conveying air, called dry-type iron powder (Dry-Particle) and its founding by a liquid called the iron powder wet (Wet-Particle), iron powder is made with various magnetic materials have a low magnetic and other properties also have a high Permeability, Low coercive force,, can be seen clearly, the size, shape, suitable, non-toxic, non-contaminated dirt and a magnetic substance.
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