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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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Product categories: General coil (CQ), structural galvanized sheet (HSLA), deep drawing hot galvanized sheet (DDQ), baking and hardening hot galvanized sheet (B···
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It can be divided into two types of in-line annealing and out-of-line annealing, which are also called protective gas method and flux method.
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