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Hinged arch springing structure for lagging jack in reinforced concrete arch bridge construction, has arc-shaped steel plate horizontally placed for forming arch springing section so that rod and base of arch springing section are pressed. 专利
申请日期: 2011-01-01, 公开日期: 2011-12-21
作者:  HAUNG C PAN S QIU W TAN Y TU Y WANG
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