This Day, That Year
China Daily | Updated: 2019-03-05 07:22
Editor's note: This year marks the 70th anniversary of the founding of New China.
On March 5, 1991, China became the fifth country to search the seabed in the Pacific Ocean for polymetallic nodules.
These are rocks, mostly about the size of a potato, on the seabed containing metals such as cobalt, manganese, iron, nickel and aluminum, which have huge economic potential.
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