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The balls on high voltage wires have always been a mystery, so what is their purpose?

Unesco's Scientific, Educational and Cultural Organization has recognized the Mac Cao Stone Cave as a World Cultural Heritage in 1987.

Cao Bang has many famous delicious specialty fruit trees such as Chongqing chestnut, blood plum Bao Lac, Le Tra Linh, Ha Tri tangerine, Trung Vuong orange, Phuc Hoa pomelo ...

Although it has passed the peak season of the Northwest water season, Tu Le - Cao Pha - Mu Cang Chai sight seeing journey is still extremely attractive on these summer days.

Enhancing many new features and maximizing the size of high-tech products such as mobile phones, music players, cameras ... will cause the risk of explosion of these products is