Galla Chinensis (Wu Bei Zi) is the insect gall of Rhus chinensis Mill., Rhus potaninii Maxim. or Rhus punjabensis Stew. Var. Sinica (Diels) Rehd. Et chinensis (Bell) Baker. 
 
The extract of its tannin can serve as a beneficial feed additive, enhancing immunity and growth, while also functioning as a botanical antibiotic for white shrimp,.
 
It applies in various other industries, including dyeing, medication, metallurgy, cosmetics, food, and environmental protection. 
 
Its extract waste was indicated which can be applied for power generation, CDs materials, botanic film, sensitive detection of doxorubicin hydrochloride and cell imaging, and so on.