Legal analysis: No signature or seal; not filled in in the prescribed format; bid documents not sealed as required in the bidding documents; bids delivered after the deadline; no bid guarantee; no *** attached Same as the bidding agreement; the bidding unit shall attend the meeting.

Legal basis: "Tendering and Bidding Law of the People's Republic of China" Article 40 The bid evaluation committee shall review and compare the bid documents in accordance with the bid evaluation standards and methods determined in the bidding documents; If there is a bid bottom, you should refer to the bid bottom. After the bid evaluation committee completes the bid evaluation, it shall submit a written bid evaluation report to the tenderer and recommend qualified bid-winning candidates. The tenderer determines the winning bidder based on the written bid evaluation report submitted by the bid evaluation committee and the recommended winning candidates. The tenderer may also authorize the bid evaluation committee to directly determine the winning bidder. If the State Council has special regulations on bid evaluation for specific bidding projects, such regulations shall prevail.