12-17-2017, 10:39 AM
I read a report about disappearing shipwrecks. First it was strange why HNLMS De Ruyter, Java and Kortenaer disappeared completely or almost from the seabed. It's not only the steel, but also copper, brass and bronce.
The term in question was "low background steel". But you already found it.
The term in question was "low background steel". But you already found it.