| 摘要 |
<p>An anti-tarnishing composition of pure copper and copper alloy is disclosed. An embodiment of the present invention provides an anti-tarnishing composition of pure copper and copper alloy comprising: 0.01-5 wt% of a corrosion inhibitor; 0.01-2 wt% of a bio surfactant; and 90-97 wt% of a solvent.</p> |
