Depending on the alloy, zinc usually forms a gray oxide or carbonate corrosion layer. ... Technical analysis and art historical research are frequently required for a full understanding of the aesthetic intentions of the artist or firm that producedanbsp;...
|Title||:||Guide to the Maintenance of Outdoor Sculpture|
|Author||:||Virginia Norton Naudé, Glenn Wharton|
|Publisher||:||American Institute for Cons - 1993|