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How to test the performance of the blank? _ ndfeb strong magnet manufacturers

by:Newland     2020-04-02
How to test the performance of the blank?   Detection method of the blank is: (1) & ensp; The whole furnace material before sampling after; ②  On the blank square taking about 10 x15mm test sample column; ③  Some samples of this furnace with magnetic detector automatically column tests, get the results; ④  To analyze all the data and determine whether the material is qualified.
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