Round

Guo Fu and Lu Hai looked at each other and shook their heads.

This was the third time the Industry and Commerce Bureau had come to inspect them, but it seemed like they were deliberately going against them.

Zhang Lu put away the test strip on the table and prepared to leave.

Guo Miao looked at the test strip in her hand and frowned.

"Then, can you leave the test strip behind? I want to study it," said Guo Miao.

Zhang Lu's eyes flashed with a trace of panic, but she quickly calmed down and snorted. "This is something exclusive to the Industry and Commerce Bureau. How can I just leave it behind?"

"It's because there's a problem with the test strip, right?" Guo Miao said.

This test strip used a chemical substance that would turn red when it came into contact with formaldehyde. However, as long as the dosage was increased, even if the dosage of formaldehyde was within a safe range, the test strip would still turn red.