For paper submission, if there is no agency, download the supplementary form from China National Intellectual Property Administration website, fill in the basic information according to the instructions for filling in the form, check the second box of the attachment list, and write "Replace the attached page of the instruction with 1 copy, each copy? Page "? Fill in according to your pages, and finally sign the same chapter or word at the signature.
Send supplements and replacement instructions and drawings to the patent office.