Inquiry (采购产品): Chemical etching of iron I am an electrical engineering student busy with a design project. I need to etch iron from a machine has aluminium parts without damaging the alumminium as i will use it at a later stage. which chemical can i use to do this? **** Hidden Message ***** Sandisiwe Smondile 1903 nu11 Mdantsane East LondonZAF Company: North West Univeristy Title: Miss Phone: +27 83 9970834 E-mail: 12669687@student.nwu.ac.za **** Hidden Message ***** 12669687@student.nwu.ac.za