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JGJ149-2017 concrete special-shaped column structure technical regulations \ [3], implemented from December 1, 2017.

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[Abstract]:
JGJ149-2017 concrete special-shaped column structure technical regulations \[3], implemented from December 1, 2017, the original JGJ149-2006 concrete special-shaped column structure technical regulations shall be abolished at the same time.

JGJ149-2017 concrete special-shaped column structure technical regulations \[3], implemented from December 1, 2017, the original JGJ149-2006 concrete special-shaped column structure technical regulations shall be abolished at the same time.

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