"Engraving can only be done with copper plates, nothing else can do it."
"As for turning the copper plates into movable type, no other materials can be used."
"Otherwise, it will break after just a few prints."
"As for using iron, iron is much harder than copper, and it is impossible to carve words on it."
"And even if it works, it will be very easy to damage the paper during printing."
Zhao Hao immediately smiled and clapped his hands.
"I never thought that Your Highness would know so much about printing."
Princess Yongning couldn't help but snort.
"I also had this dream when I was very young, so I really understood it."
"It's only after understanding it that you will know how difficult this matter is."
"So Zhao Hao, don't think this is easy."
Zhao Hao smiled and said, "Okay, I understand. I will think about it carefully."
Seeing him like this, Princess Yongning was immediately furious, because she knew that Zhao Hao didn't listen at all.
Zhao Hao didn't want to continue arguing with her about this matter, so he simply changed the subject.
"Your Highness, have you received my daily letters?"
Hearing him say this, Princess Yongning was stunned for a moment, and then her pretty face turned red.
"received……"
The volume of her voice dropped a lot in an instant, and her eyes quickly moved away from Zhao Hao and looked elsewhere.
Full of shame and embarrassment.
This bad guy,
Why are you suddenly saying this?
Seeing this, Zhao Hao nodded slightly, and then said softly: "Then why didn't Your Highness reply to even one letter for me?"
As he spoke, he slowly walked towards the other person.
Princess Yongning was shocked and quickly took two steps back.
"Zhao Hao, what are you doing?"
"you……"
"Don't come over here!"
For a moment, she was as panicked as a rabbit being chased by wild dogs.
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