Female-male sex: Salted fish forced to rise to prominence

Su Yu said calmly and calmly: "I know that you can create a sword of this shape, but it is easy to break after use. I have a way to improve this problem."

As he spoke, he introduced a method he had seen before, namely the "carburizing" process, which he had read in a book. He only remembered this method.

This rubbing technique was recorded in the book "Wubian" written by Tang Shunzhi in the Ming Dynasty.

“…or cast pig iron and wrought iron together, wait until they are extremely wrought and the pig iron is about to flow, then rub the pig iron onto the wrought iron to drive it in.” Obviously, the carbon rubbed into the surface is carbon, which is carburization.

There is another book, "The Exploitation of the Works of Nature" written by Song Yingxing in the late Ming Dynasty, which records another craft method.

It wrote: "All tools used for land cultivation, such as hoes and spades, are forged from wrought iron, poured with molten pig iron, and then quenched in water to become strong. For each hoe and spade weighing one pound, three grams of pig iron should be poured in. Less pig iron will make it weak, and more will make it too hard and break."

Su Yu summarized it and explained that by pouring three grams of pig iron liquid on wrought iron, it would achieve a strong and unbreakable effect, and it would also be both soft and hard.

After the old master and the young man heard this, their eyes instantly widened into the size of copper bells, their faces filled with disbelief.

They had never heard of or seen such a strange method before! However, after careful consideration, the method described by this young man did seem to have a certain degree of rationality and feasibility.

But why is it that these experienced people have never thought of it?

The old master excitedly clasped his hands together, then bowed deeply and respectfully to Su Yu, expressing that he was sincerely convinced.

He said, "Sir, you trust me so much that you have taught me this unique technique without reservation. Once the sword is completed, I will definitely take you as my master.

The old master is a loyal and honest person, and he has great respect for the skill of blacksmithing. This craft is difficult to learn, and it takes at least ten years to learn from the master, and at most a lifetime.

Su Yu said: "Master, don't worry, you still need to think carefully about this sword."

After that, they put down a two-liang deposit and agreed to come back to pick up the sword in a month. Then the three of them left.

Just as they left, a figure appeared in front of the blacksmith shop like a ghost. This person was a young man with a handsome face and an elegant temperament, like a scholar.

This young man was none other than Yue Ren, the man specially sent by the prince to follow Su Yu.

These days, Yue Ren has been following Su Yu closely, but has never been able to find anything special about him.

On weekdays, when Su Yu goes out, he just goes shopping or tinkers with some strange design drawings, such as those called "fitness equipment".

However, today, he came to this blacksmith shop again, which was really puzzling.

Yue Ren walked into the blacksmith shop, full of doubts, and asked one of the experienced masters about the situation. At first, the master kept his mouth shut and refused to reveal a single word.

However, when Yue Ren suddenly took out the palace token, the old master was frightened so much that his face turned pale and he immediately told everything.

This is the powerful deterrent power of royal power!

After Yue Ren stepped out of the blacksmith shop, he roughly understood the reason.

It turned out that Su Yu had developed a new type of cast iron technology that could make the iron blocks more resilient, making them not only difficult to break but also extremely wear-resistant.

Realizing that this matter was of great importance, Yue Ren did not dare to delay even a little and had to rush back to the palace as soon as possible to report to the prince.

If this technology can be successfully applied, it will undoubtedly be a earth-shaking event for the entire Great Sheng Dynasty.

At the same time, this blacksmith shop must also be assigned special personnel to secretly and strictly guard it to prevent the leakage of this technology. Once this technology is mature and perfected, it will greatly enhance the combat effectiveness of the entire army and the overall strength of the country.

Yue Ren was as light as a swallow, displaying his peerless lightness skills, and galloped non-stop towards a sparsely populated area. Finally, he arrived in front of a village in the east city of Taohua County.

This manor, tucked away in the bustling city, is inconspicuous in its location, yet its area is vast. A single plaque hangs above the manor gate, inscribed with the words "Jiang Mansion" in vigorous and powerful calligraphy, exuding an air of majesty.

Yue Ren carefully stepped into the manor through the side door, crossed the exquisite hanging flower gate, and walked along the winding corridor.

At this moment, a little maid came towards them. Yue Ren hurried forward and asked, "Do you know where the prince is now?"

The maid saw that the visitor was actually the highly respected Master Yueren by the prince's side, and immediately showed awe. She replied respectfully, "Your Excellency, the prince is in his study at this moment."

Upon hearing this, Yue Ren said nothing more and ran faster towards the study.

On either side of the study door, two guards stood erect, like statues. But upon seeing Yue Ren approach, they showed no intention of stopping him, as if they were already accustomed to his style of action.

Yue Ren rushed into the study and saw the prince who was leisurely reading a book.

Next to the prince stood quietly his good brother, Anhuo.

Seeing this, Yue Ren did not dare to be negligent in the slightest. He knelt on his knees and shouted loudly: "Your Highness, I have something important to report!" His voice was loud and deafening, echoing in the quiet study.

Upon hearing this, Li Ruize put down the book in his hand, glanced at Yue Ren who was kneeling on the ground, and teased: "Your prince doesn't have any hearing problems, so there's no need to be so loud."

Yue Ren said: "I have something important to report."

"What's the matter?" Li Ruize's voice became serious.

"I've been following Su Yu these past few days. There's nothing special going on. I just draw some designs called 'Fitness' and other ceramic drawings. Until I arrived at the blacksmith shop..."

He paused as he spoke, leaving the audience in suspense.

Li Ruize glanced at him and said, "You've been missing for a few days, so you're itching to get itchy, right?"

"I dare not. I am just organizing my words to see how to say it."

"Oh..." These words actually aroused Li Ruize's interest.

Immediately afterwards, Yue Ren described the so-called "iron infiltration" technology that Su Yu mentioned.

Prince Ye Li Ruize listened with increasing fascination, his brows furrowed like two tightly closed city gates. He thought to himself: If such a weapon could be successfully developed, its lethality would surely increase exponentially!

If it is applied in the military field and all soldiers are equipped with this weapon, wouldn't our country's strength leap forward significantly?

Thinking of this, Li Ruize made a decisive decision and issued an order: "Quickly send more people to hide in the dark and closely monitor and supervise.

When the sword is finished, bring the swordsmith to me immediately. I will interrogate him in person!"

"Yes, sir. I'll do it right away!" Yue Ren responded quickly after receiving the order.

Li Ruize then added, "Yue Ren, once you have made all the necessary arrangements, please return to my side immediately."

After that, he called out again: "Dark Fire!"

Only a clear reply was heard: "I'm here!"

Li Ruize's eyes were like torches as he solemnly instructed, "From now on, you will be fully responsible for keeping an eye on Su Yu. Be sure to find the right opportunity and follow him closely.

In my opinion, this person still has many uses."

Li Ruize couldn't help but sigh that he had underestimated this young man after all. He thought he was just a little smart.

If this plan is to be successfully implemented, we must keep this young man closely within our sight to feel at ease.

After all, if this matter were to leak out and be discovered by spies from other countries, the serious consequences it would cause would be unimaginable!

Su Yu still underestimated the productivity of this era, and he did not expect that because of such a small matter, he had been targeted by the most powerful and few princes of this dynasty.