April 16, the Long March 4B successfully launched FY307 satellite into orbit at Jiuquan Satellite Launch Center. After the mission was successful, the 9401 launch tower, which lifted the rocket into the air, was engraved with the 100th brand new red star, marking the successful completion of the 100th launch mission for the 9401 launch tower. The 9401 launch tower started construction in 2001 and was completed and put into use in 2003. It is the first launch tower with reinforced concrete as the main structure in China, mainly composed of tower structure, rotating platform, lifting working platform, tower crane, swing rod, elevator, testing room, and other parts
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AG1 single rotary platform
AG2 double rotary platform
AG3 triple rotary platform
AG4 quadruple rotary platform
AG5 swing rod