P Anchorages and couplers for the prestressing system considered shall be in accordance with the relevant European Technical Approval.
预应力系统所用的锚固和连接器必须符合相关的欧洲技术认可。
P Anchorages and couplers for the prestressing system considered shall be in accordance with the relevant European Technical Approval.
预应力系统所用的锚固和连接器必须符合相关的欧洲技术认可。
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