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The Rubik's cube internal rotation structure and row in combination,
that change the position of the insertion hole , so as to meet the
demand and three or two inserting, and according to the environment
change hole structure. The outer surface of the socket color is not the
same but not the same kind of color combination can also normal use,
and compared with the common interpolation, it is more interesting
to the user, can attract more customers to buy.
GuangDong Ocean University
Guangdong Province, China