| 摘要 |
Galvanized steel stock is prepared for the application of a top coating by roughening the surface prior to the application of the top coating. The zinc surface is roughened with the zinc pellets. By using zinc pellets, the treated surface is essentially free of oxidation sites which would later form the basis for corrosion. Both the roughening of the zinc layer of the galvanized steel and the application of the top coating are effected while the zinc coating is still malleable.
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