Inquiry (采购产品): Computer case side panels Hello, My company is looking to engrave our computer cases' side panels with our logo. The panels are powder coated aluminum, and the image is 4.5" x 9" monochrome. Since this is a commercial product, we are concerned about the possibility of the aluminum tarnishing. Do you have suggestions or services on how to prevent this from occurring if it is an issue? Also, if possible we'd like to ship you a sample for you to engrave so we may see the result before we move forward. Thank you, David Knippenberg WarFactory Corp. **** Hidden Message ***** David Knippenberg 61874 Company: WarFactory Corp. E-mail: david.knippenberg@warfactorypcs.com **** Hidden Message ***** david.knippenberg@warfactorypcs.com