Whether the bidding U disk needs lettering depends on the requirements of the bidding documents. Generally, lettering is not required. You can write labels and stick them on the USB flash drive, because electronic documents are packaged separately and can be distinguished.

When the bid documents are sealed, the bidder must submit the bid documents in a sealed manner according to the number of copies required in the previous schedule, and affix the seal of the bidder's legal person and the seal of its legal representative or its entrusted agent on the sealed bag.

The contents of the bidding documents are as follows:

1, the tender documents generally contain three parts, namely, the credit information part, the business part and the technical part.

2. The credit part includes a series of contents such as company qualification and company introduction. , as well as other documents and other related contents required by the tender documents, including company performance, various certificates and reports, etc.

3. The technical part includes project description, design and construction scheme, bill of quantities, staffing, drawings, tables and other technical schemes and other technology-related information.

4. The commercial part includes the description of bid quotation, total bid price, price list of main materials and contract conditions (general and special), etc.