"What...what is this?" A craftsman pointed at the huge furnace, his voice filled with undisguised shock.

"Those are the smelters and blast furnaces that melt the iron ore and remove the impurities to create pure molten iron."

The little princess explained, her tone revealing an unconcealable pride.

Another craftsman walked over to a sophisticated machine and examined it carefully. "Is this... a rolling mill? It's so huge and complicated!"

Because the little princess brought a lot of relevant knowledge and drawings from modern times, the craftsmen already had a clear understanding of the rolling mill.

The little princess nodded in affirmation, "Yes, this rolling mill can cast molten iron into shape.

And through a series of rolling processes, we can finally produce the armor and weapons we need."

The crowd continued walking along the spacious factory corridor, and with every step they took, they saw more equipment that shocked them.

Of course, what surprised them even more was that there was actually a stand-alone small building in this factory, which was obviously unrelated to these equipment.

"That's the staff dormitory!" the little princess volunteered. "All the craftsmen working here will live in this small building."

"It's equipped with comfortable beds and various living facilities to ensure you can get enough rest after work."

When the craftsmen heard this, they all showed expressions of gratitude.

They knew that the little princess cared not only about their work but also about their lives, which made them feel very warm.

After visiting the steel plant, the little princess left behind several hundred guards and craftsmen to familiarize themselves with the environment.

She personally led the rest of the group to the steam iron ore factory, wanting to release the steam iron ore factory there as soon as possible.

As a result, just as the group was about to leave the steel plant gate, they ran into Li Shimin, who was coming towards them with a curious and heartbroken expression.

"Yeah yeah," the little princess was stunned for a moment, then ran happily towards Li Shimin and took his arm affectionately.

"What brings you here? Are you here to see the steam iron and steel mill in Sizi?"

It turned out that although Li Shimin rode at full speed to witness the miracle, he was still one step late.

When he arrived at Ziyun Valley, the steam steel plant had already risen from the ground, standing tall in the valley.

Li Shimin looked at the magnificent building from afar, and an indescribable shock surged in his heart.

Although he was the emperor and knowledgeable, the scene before him still exceeded his imagination.

After all, the architectural style of this steam steel plant is very different from that of the Tang Dynasty.

Besides being shocked, he also felt a hint of regret.

He couldn't help but wonder how the little princess created this factory out of thin air?

Is it just a gentle wave of the arm?

Li Shimin felt deeply regretful that he was unable to witness the birth of this miracle with his own eyes.

But when he faced his most beloved youngest daughter, all the regret and sorrow in Li Shimin's heart disappeared.

He touched the little princess's head lovingly, his eyes full of love.

"My precious daughter is so amazing. She built such an amazing factory. Of course I have to come and see it myself."

As he spoke, he looked up at the towering steam steel plant with an expression of amazement on his face, "This is truly a miracle!

I have never seen such a magnificent building. You are my pride."

When the little princess heard Li Shimin's praise, a warm feeling surged in her heart and her eyes sparkled with happiness.

She knew that this factory was not her ability, but the result of Xiao Rangjun's favor towards her.

"Yeah, you're here at the right time," the little princess said excitedly, holding Li Shimin's hand.

"Sizi is about to take people to the steam iron ore factory. Do you want to go and take a look?"

"Steam iron ore plant?" Li Shimin heard this and asked, "Could it be... that you are going to build another plant?"

"Yeah, you'll know when you go there," the little princess said with a mysterious smile, "I guarantee it will open your eyes."

So, the little princess and Li Shimin led the crowd and marched towards the steam iron ore plant.

Along the way, the little princess introduced to Li Shimin in detail the principles and uses of steam steel plants and steam iron mines.

Li Shimin listened with great interest and admired the little princess's talent and knowledge.

Only after living so long did he realize that there are so many tricks in iron ore mining and smelting, and that it can achieve such high efficiency.

Doesn't this mean that as long as these two factories operate at full capacity, Tang Dynasty will no longer be short of steel?

Two kilometers is too close after all.

Soon after, they arrived at the site of the steam iron ore mine.

The little princess stood in the open space, her heart full of anticipation and excitement.

She knew that another great factory was about to be born here, contributing more to the prosperity and strength of the Tang Dynasty.

"Little Lord, are you ready?" the little princess asked in her mind.

"We can start at any time," Li Haoze's voice sounded in her mind, "Just waiting for your order, Sizi."

The little princess took a deep breath, then waved her hand suddenly, "Let's start!"

With a wave of her little hand and Li Haoze's perfect cooperation, an invisible force surged in Ziyun Valley again.

In the center of the open space, huge foundation stones appeared out of thin air and were firmly embedded in the ground.

Then, thick steel beams grew rapidly like mushrooms after rain, interweaving into an even more spectacular steel frame.

This time, everyone in the princess's mansion had learned from previous experiences and was no longer as shocked as before.

They stood aside, watching the construction process of the steam iron ore plant quietly, with expressions of awe and anticipation on their faces.

But Li Shimin and the palace guards, who witnessed this scene for the first time, were shocked beyond words.

They stared with wide eyes, watching the open space transform into a magnificent factory at a speed visible to the naked eye, with surprise surging in their hearts like waves.

This kind of miracle is simply unheard of and unseen!

The steam iron ore plant gradually took shape before everyone's eyes.

Towering chimneys, huge mechanical equipment, intricate pipes... everything is revealed at an astonishing speed.

Li Shimin stood there, stunned.

As the Son of Heaven, he believed that he had seen all the rare treasures and magnificent buildings in the world.

But the scene before him shocked him like never before.

This was not just a building, but a display of power, a miracle that surpassed all his previous cognition.

It was hazy, as if a fairy had descended to the earth.

"Is this...is this really something human can do?"

Li Shimin muttered to himself, his voice full of awe and confusion.

The little princess stood aside, looking at her father's astonished expression, and a sense of pride welled up in her heart.

She knew that all this was because of her little brother.

The one who has always been by her side, giving her endless support and strength.