C747 Approach to the Response

"Director Zhang, when can we come in?" Yang Tao asked.

"I can come and stay at any time. I use the most environmentally friendly material, without any bad smell or harmful substances. I've already asked someone to test me on formaldehyde, and I completely meet the standard. If you are worried, you can stay for a while." Zhang Li said.

"I'm not going to be idle. I still believe in you