What should I do if the appended drawings of the invention patent application are wrong?

If you want to keep the application date at that time, you can only delete the reference signs and descriptions in the drawings and specifications.

if the patent drawings are resubmitted, the date of filing will be changed to the date of submitting the drawings.

when making corrections, submit the correction book and the replacement page of the application documents.

The correction form can be downloaded from the website of China National Intellectual Property Administration.