Hangzhou Candid I/E Co., Ltd.
Q:What are the steps of cleaning before galvanized
A:1.first ,steel is immersed in a caustic solution to remove organic material such as grease and dirt,
 2.followed by dipping in an acid bath (hydrochloric or sulfuric) to remove mill scale and rust, 
3. finally lowered into a bath of flux that promotes zinc & steel reaction and retards further oxidation of the steel… (steel will not react with zinc unless it is perfectly clean)

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