can't read?
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.
N 9045 Nickel foil, 0.5mm (0.02in) thick, 99.9% - used as a substrate for the growth of several nanomaterials.