C750 Respect to Each Other

Yee Yunrui thought for a while. "When did you develop this kind of mask?"

He believed that when big brother got this mask, the other side already had a rough understanding of it.

"Not long ago, but you don't have to worry. This mask is not easy to circulate." As he spoke, Yee Yuntian took out the lighter and lit a fire at the mask. As soon as the flame splashed out