The protocol not only guarantees the non repudiation and anonymity of the bidder, but also ensures the non repudiation of the bid received.

协议不仅保证了投标者对所投价位的不可否认性和匿名性，而且保证了拍卖代理对接收标书的不可否认性。

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Guarantees for overseas engineering contracts fall into four major types: bid guarantee, advance payment guarantee, performance guarantee and retention money guarantee.

海外工程合同中的保函主要有投标保函、预付款保函、履约保函和保留金保函。

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Guarantees for overseas engineering contracts fall into four major types: bid guarantee, advance payment guarantee, performance guarantee and retention money guarantee.

海外工程合同中的保函主要有投标保函、预付款保函、履约保函和保留金保函。

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