Because it involves the copyright and patent issues of new technologies and new processes used in the design, it is necessary to keep the drawings confidential:
1, drawings and technical data are classified into top secret, confidential and general according to the importance of confidentiality to the project.
2. Top secret: Top secret drawings and materials shall be stamped with the special seal and serial number of the project, and the distribution and recycling shall be registered and managed according to the management requirements of top secret documents, and signed and sent by special personnel. If any items are lost or leaked, the relevant responsible person shall be investigated for relevant responsibilities according to the seriousness of the case.
3. Confidentiality: Confidential drawings and materials shall be stamped with the special seal for project confidentiality and numbered, and managed according to the requirements of confidential document management.
4. General: General drawings and materials shall be managed according to general drawings and materials without any seal.