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What are the main defects of hot dip galvanizing?

Mainly: peeling, scratches, passivation spots, zinc particles, thick edge, air knife stripes, air knife scratches, exposed steel, inclusion, mechanical damage, ···

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usually cooling tower cooling ways are several?

There are two kinds: air-cooled and water-cooled.

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What are several forms of galvanized annealing furnace?

There are three kinds of vertical, horizontal and vertical annealing furnaces.

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What are the commonly used steel types of hot galvanized sheet?

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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