What is the main content of the tender announcement?

The tender announcement contains many contents, which should include the following contents: \x0d\ (1) Name and address of the tenderer, name of the project subject to tender; \x0d\ (2) The nature and quantity of the project subject to tender; \x0d\ (3) The place and time of implementation; \x0d\ (4) Bid deadline and bid opening time; \x0d\ (5) Qualification of bidders; \x0d\ (6) Methods of obtaining prequalification documents and bidding documents, etc.