Normal makes no difference. Usually, the only difference between the original and the copy is the positive and negative words on the cover. The original must be stamped with a red seal and signed by itself, and the copy can be a complete copy of the original (mainly depending on the requirements of the tender). In addition, some special signs need to be attached to the original, such as the manufacturer's power of attorney, and the copy is just a copy!

Cataloging:

The filing documents shall be compiled in the order of classification scheme and room number.

The archived documents should be catalogued one by one. When a communication and a reply are considered as one, only the reply is classified. Set items, such as part number, person in charge, document number, title, date, number of pages, comments, etc. In the archive file directory.

Part number: fill in the room part number.

Person in charge: the organization or individual who issues the document, that is, the issuing authority or signatory of the document.

Document Number: the document number of the document.

Title: File title. If there is no title or the title is not standardized, you can draw up your own title and add "[]".