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Qinghai-Tibet Railway from East Xining, South Lhasa, length of 1956 kilometers, known as the "Tin Road" is the implementation of the western development strategy of landmark projects, it is one of four projects in the new century China. Where the altitude of 4,000 meters above the road 960 kilometers, the permafrost region of 550 kilometers, crossing the highest point of the railway Tanggula 5072 meters above sea level, is the highest elevation in the world, the longest distance in the permafrost, to overcome the difficulties of a world-class highland Railway. CYG Electric cable accessories products applied in Lhasa - Golmud line.