可转让单据 meaning in English

negotiable document
transferable document

The importer can sell the goods to a new buyer while they are being carried by means of negotiable shipping documents which are very convenient for us
进口商可通过可转让的运输单据将货物在运输途中卖给新的买方，这类可转让单据用起来非常方便。
The importer can sell the goods to a new buyer while they are being carried by means of negotiable shipping documents which are very convenient for use
进口商可以通过可转让的运输单据的将货物在运输途中卖给新的买方，这类可转让单据用起来非常方便。