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M27 segment connection bolts, and cave door connection bolts to Xi’an Metro Line 2

In 2020, Anyang Railway Equipment Co., Ltd. provided M27 segment connection bolts, and cave door connection bolts to Xi’an Metro Line 2

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Xi’an Metro Line 2 is the first completed and operational subway line in Xi’an, Shaanxi Province, China. The total length of the II phase of Xi’an Metro Line 2 is 6.922 km, all of which are underground lines.

In 2020, Anyang Railway Equipment Co., Ltd. provided M27 segment connection bolts, and cave door connection bolts to Xi’an Metro Line 2, and the acceptance standards for segment tunnel bolts implemented “Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures” (GB/T1231) and “Code for construction and acceptance of shield tunneling method” (GB50446-2008).

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