You will tell me that the Egyptians did not know iron also, but this is only partially correct. They only had to scour the desert to pick up the iron meteorites. (I think they had trained dogs for this purpose, iron rust has a very strong smell, like silver.)(probably volatile coumpounds like carbonyles) (Hubble saw nickel spectral line of nickel around a comet or an astéroïd this week, I don't remember the name)
There was a beautiful iron dagger in King Thut's tomb.
Do not believe what one reads in official Egyptology books. They inserted small points of cementad iron in their copper scissors, to be able to cut the hard rocks. (with an iron socket around, to prevent the copper from creeping under the shocks) They cemented it by heating red hot it previously with bone powder and blood for hours, the carbon diffused in the ferronickel and it became more harder than our best high speed steels. But obviously, we never find these tools today, because they cost the skin of the buttocks, and if they were lost, even in the dry climate of Egypt, the cemented Fe / Cu electrolytic couple very quickly destroyed the steel tip of the tool, and we just find a copper rod with a hole in the end, and the trace of the missing steel socket)
I've written a few articles on Alternative Egyptology, I'll have to write a book, God willing. (Anyway, my scientific reputation is already destroyed by my cold fusion research)