C185 Transparent

Yang Bo dialed Cao Yuande's number and the call connected.

"Gold powder? Professor Cao, you don't think that is gold powder, do you?" Yang Bo asked.

Cao Yuande smiled. "I was busy just now. I was just joking with you. I'm currently looking up information. I don't think that this thing is made of gold powder."

"It is usually made of powder that is applied to the face. However