The bid in the status should mean that the ID card is suspected and needs to be opened with the health code or travel code. If the display is normal, it means that the ID card can be used for a long time and does not need to be replaced. . The winning bidder shall fulfill its obligations in accordance with the contract and complete the winning project. The winning bidder shall not transfer the winning project to others, nor shall it dismember the winning project and transfer it to others separately. The winning bidder may, according to the contract or with the consent of the tenderer, subcontract part of the non-major and non-critical work of the winning project to others for completion. The person who accepts subcontracting shall have corresponding qualifications and shall not subcontract again. The winning bidder shall be responsible to the tenderer for the subcontracted project, and the subcontractor shall be jointly and severally liable for the subcontracted project.