National Gate Introduction: The National Gate spans the railway, with a total of 4 floors, 21 meters high, 71.4 meters long, and 13 meters wide. The main body is a steel structure stress reduction wall, and the outer wall is made of granite slabs, channel steel frames, and glass wool. A composite wall composed of thermal insulation and a glass curtain wall structure spanning the middle part of the railway. It is majestic and magnificent.

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