Each is capable of scrubbing about 300 sq meters a day.
CNN: AFTER THE BANG
Kingdom Tower is to become the centerpiece of a 17.4 million square foot (5.3 mln sq meters) development overlooking the Red Sea north of Jeddah called Kingdom City.
FORBES: Saudi Prince Alwaleed To Build World's Tallest Tower With Binladen Group
How do you keep 21, 000 sq meters of glass sparkling?
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