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METHOD FOR MAKING A ELECTRO-ZINC COATING STEEL SHEET WITH AN EXCELLENT SURFACE BRIGHTNESS
METHOD FOR MAKING A ELECTRO-ZINC COATING STEEL SHEET WITH AN EXCELLENT SURFACE BRIGHTNESS
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机译:制作具有出色表面光洁度的电子镀锌钢板的方法
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摘要
The method improves the surface luster of galvanized steel strip by accurately controlling pickling conditions. During pickling process steel strips dip in the acid solution containing hydrochloric concentration of 20 to 25 weight.% for 3 to 24 seconds.
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