You can't apply for a patent just by filling out the form.
Other relevant application documents shall also be prepared, including the claims, the specification, the abstract of the specification, the appended drawings of the specification and the appended drawings of the abstract.
If you have prepared all the above documents and are in compliance with the provisions of the Patent Law and its detailed rules for implementation, you can submit them to the patent application together with the request for a patent for utility model and the request for fee reduction.
The application documents are in duplicate, and the application fee is 75 yuan.
Mailing address: No.6, Xitucheng Road, Jimenqiao, Haidian District, Beijing.
Postal code: 100088.
Recipient: China National Intellectual Property Administration Patent Office.
Of course, if you are not sure, you can find an agency to help you. They will charge an agency fee ranging from 2000 to 5000. It's up to you.
You can also come to me and I'll do it for you. The cost is much cheaper than theirs.