SOLUTION COMPOSITION FOR STEEL SHEET SURFACE TREATMENT, ZINC-BASED PLATED STEEL SHEET SURFACE-TREATED WITH SAME, AND MANUFACTURING METHOD THEREFOR
The present invention provides: a solution composition for steel sheet surface treatment, the solution composition containing 30-60 wt% of a trivalent chromium compound including chromium phosphate (A) and chromium nitrate (B), 0.2-0.4 wt% of a rust-inhibiting and corrosion-resisting agent, 0.1-0.3...
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Sprache: | eng ; fre ; ger |
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