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The main reasons for zinc layer shedding are: Surface oxidation, silicon compounds, cold bound emulsion is too dirty, NOF section oxidation atmosphere and prote···
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Mainly: peeling, scratches, passivation spots, zinc particles, thick edge, air knife stripes, air knife scratches, exposed steel, inclusion, mechanical damage, ···
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There are two kinds: air-cooled and water-cooled.
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There are three kinds of vertical, horizontal and vertical annealing furnaces.
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