C33 Astragalus Bovis

"Is this the Yellow Ox?" Zhang Tianhao's eyes widened, the glass-like object in front of him was actually an expensive Chinese medicinal herb, Ox-Yellow?

Chen Jie nodded his head, "That's right, there is yellow in the cow and gallbladder in the dog. The stone of the cow is called yellow in the cow and it is born in the gallbladder. The stone of the dog is born in the kidney and is called dog ink