I didn't find in Dr. Duke's database, any information about the uses of Drynaria sinica
Here is some basic information about Drynaria sinica.
Drynaria sinica basic info
Scientific Name: Drynaria sinica Diels.
Drynaria sinica in other websites
Drynaria sinica common names, economics importance, distributional range and more in the USDA GRIN website - See link
Search PubMed (US National Library of Medicine National Institutes of Health) for academic researches with the search term Drynaria sinica - See link
See if there is something in Youtube on the term Drynaria sinica - See link