The Zhuanzhihui Patent Trading Platform will give you the answer:
You can apply only if it is novel.
Patent Law Definition: Inventions and utility models for which patent rights are granted must possess novelty, creativity and practicality.
Novelty: means that before the filing date, the same invention or utility model has not been published in domestic or foreign publications, publicly used in China, or otherwise known to the public, nor has it been the same. The invention or utility model has been applied for by others to the patent administration department of the State Council and is recorded in the patent application documents published after the application date.