C284 Surprise Discovery(3)

Gu Wangchuan, who was deep in thought, was interrupted by an anxious knock on the door. He adjusted his sitting posture and shouted in a deep bass voice, "Come in!"

"President Gu, I've redesigned the drawing. Take a look. There are a lot of differences between the original one and the one before. New adjustments and modifications have been made to the thinking