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How hard is it to build a highway in the Karakoram mountains?
02:06

Stretching from Kashgar in China's Xinjiang Uyghur Autonomous Region to Pakistan's Islamabad, covering a distance of approximately 1,200 kilometers, the Karakoram Highway is one of the world's highest-altitude highways and the only road linkage between China and Pakistan.

What does it mean to work on such a project? Our reporter talked to the chief engineer of China Road & Bridge Corporation's Pakistan Branch Office.

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