C23 Different Pill Refining Techniques

"Refining pills?"

A flicker of surprise passed through Chen Huahua's eyes, but Chu Qing caught it.

"Do you understand pill refining?"

Chen Huahua seemed to recall something. She exhaled deeply and regarded Chu Qing with a hint of skepticism, "You really don't know? The Tang family you were inquiring about specializes in pill refinement."

"Is that so?" Chu Qing responded, taken aback