What is the probability that an invention patent will be rejected in China?

The current data is that the re-examination authorization rate after rejection is 40%. The rejection of a patent should mainly depend on the patent itself. I'm not good at writing patent documents, so I'd better find an agency to apply. The patent problem is complicated, especially because the invention application needs substantive examination, which is generally rejected because of novelty and creativity, so I can entrust a search agency to search and try to avoid these problems.

The rejection clause is as follows:

The term "preliminary examination" as mentioned in Articles 34 and 40 of the Patent Law refers to examining whether the patent application has the documents and other necessary documents specified in Article 26 or 27 of the Patent Law, and whether these documents conform to the prescribed format, and examining the following matters:

(1) Whether the application for a patent for invention obviously falls under the circumstances stipulated in Articles 5 and 25 of the Patent Law, whether it does not conform to the provisions of Articles 18, 19, paragraph 1 and 20 of the Patent Law or Article 16 and 26, paragraph 2 of these Rules, and whether it obviously does not conform to the provisions of Articles 2, 26, paragraph 5, 31, paragraph 1 and 33 of the Patent Law or Articles 17 to 21 of these Rules;

Article 53 According to Article 38 of the Patent Law, the circumstances in which an application for a patent for invention should be rejected after substantive examination refer to:

(1) The application falls under the circumstances specified in Articles 5 and 25 of the Patent Law, or the patent right cannot be obtained in accordance with Article 9 of the Patent Law;

(2) The application does not conform to the provisions of the second paragraph of Article 2, the first and third paragraphs of Article 20, the fourth and fifth paragraphs of Article 26, the first paragraph of Article 31 or the second paragraph of Article 20 of these Rules;

(3) The amendment of the application does not conform to the provisions of Article 33 of the Patent Law, or the divisional application does not conform to the provisions of Paragraph 1 of Article 43 of these Rules.