Syurei-Mon (Syurei Gate, Syuri Castle) Naha. The name Okinawa means rope in the open sea, a fairly apt description of this long stretch of islands between the four main islands of Japan and Taiwan. Consisting of 49 inhabited islands and 111 uninhabited islands, Okinawa has a subtropical/tropical climate.
Aluminium is used for aircraft, trains, overhead power cables, saucepans and cooking foil. Titanium is used for fighter aircraft, artificial hip joints and pipes in nuclear power stations.
In addition to its use in the production of primary aluminum, aluminum oxide has other key industrial uses. Alumina is often used as a filler for plastics. The compound is also widely used as an abrasive and is a less-expensive substitute for industrial diamond.