Duan Lang grinned: "Since the fact that Lumen Master has helped Duan, Duan can tell you that what you call perfect grade steel is just medium-sized steel, which is the limit of smelting ordinary iron ore.

However, some high-quality meteorites contain some rare elements!

Some rare elements are harmful to steel, while some rare elements are beneficial to steel.

By removing harmful rare elements and fusing beneficial rare elements, the quality of steel will be greatly improved, and you can get real top-grade composite steel."

Duan Lang said something and Lu Qianshou was stunned. After all, the technological gap between the two sides was hundreds of years, and even the first industrial revolution was not reached.

What is elements? What is composite steel?

While the two of them were talking, the disciples cleaned the slag and looked at Duan Lang with respect: "Saint Lord Duan, can you start smelting the refined copper after cleaning the slag?"

"Open the ground fire valve and start preheating and heating."

"yes!"

"Add the feed!"

"Yes!" The disciples threw pieces of scrap copper into the smelting furnace.

With the experience just now, Duan Lang is familiar with heating, liquid purification, and purification...

Soon, two hundred kilograms of fine copper were released.

Lu Qianshou admired Duan Lang in all his might. If Duan Lang was not the holy leader of the ancient Duan family, no matter how much the price he paid, he would dig Duan Lang to their Luban Sect!

"Saint Lord Duan, Xiao Lao knows that Xiao Lao is a bit too much for him to ask, but Xiao Lao still couldn't help it. Why did the combustion value of the earth fire increase by more than four times after you installed that part?"

Duan Lang grinned and said, "This Lord Lumen is an expert!" There is no thermometer in Tianfeng Realm, and he actually accurately estimated the combustion value.

Duan Lang did not hide his own privately and said in a deep voice: "Actually, it's okay to tell Lord Lumen, but I don't know if Lord Lumen can understand. Let me ask first, how much does Lord Lumen know about earth fire?"

Lu Qianshou said in a deep voice: "The earth fire is some biogas underground. It should be a gas formed by rotten animals or plants after thousands of years of fermentation."

Duan Lang clapped his hands gently. Tianfeng Realm is in a feudal society. Lu Qianshou has this insight? It's really amazing!

"Yes? Master Luman, what do you think about biogas? What is biogas composed of?"

This time? Lu Qianshou was a little blind? In Tianfeng Realm, there is no microscope? His understanding of elements is very small. How could he know the difference between microscopy?

"I would also like to ask Lord Duan for advice."

Duan Lang hesitated for a moment? If he uses academic language? Lu Qianshou would definitely not understand.

"In words you can understand, the components that make up biogas are very complex, so it seems to be a unified biogas? In fact, there are many different gases? Can you understand it?"

Lu Qianshou's eyes lit up: "I understand! The combustion values ​​of different gases are different! And the xenon radon component can extract the gas with the highest combustion value, right?"

Duan Lang looked at Lu Qianshou with praise. This old man can do it. If he put it in modern times, he would definitely become a famous scientist.

What a pity...

"That's about it? Which gases with lower combustion values ​​react? The gases that come out of the earth-fire pipeline are the gases with the highest combustion values, so? In your opinion, the combustion value of the earth-fire has increased by four times."

With a thud? Lu Qianshou knelt down for Duan Lang? He bowed down!

"Tianshou thanked his mentor! Although Sect Master Duan and Qianshou do not have the name of master and apprentice? But they have the reality of master and apprentice!"

Duan Lang was shocked. Why are the people in Tianfeng Realm so simple? Why does this old man say he kneels down? You are all in his seventies and eighties? You can be my grandfather!

How dare Duan Lang accept the kneeling of the elderly? It will make his life short!

Duan Lang quickly helped Lu Qianshou up: "Master Lumen, you are so serious. We are just a normal academic exchange. Perhaps, one day in the near future, Master Lumen can also solve my doubts."

Lu Qianshou's attitude was very firm: "No matter what the teacher thinks, in Qianshou, you will always be Qianshou's mentor! You also ask your teacher to teach you how to make Thousand Hand xenon radon components!"

Duan Lang rolled his eyes. This old man is not stupid! No wonder he just said he was kneeling down. It turned out that he was interested in xenon radon components!

However, you can calculate? This Holy Lord will do it!

Duan Lang shook his head decisively: "This is not true. Can Master Lumen understand the reason for the crime of possessing a treasure? If Master Lumen obtained the method of making xenon radon components, the smelting process will greatly improve!

Will anyone have any bad ideas?

If a top sect has an army of all sacred weapons, wouldn’t it be possible to sweep the entire Tianfeng Realm in an instant?

Swish!

A large piece of cold sweat broke out from Lu Qianshou's head!

Yes, if Luban Sect could build holy weapons in batches, those top sects would definitely not let them go! They would even be detained and become slaves to build war preparedness for a top sect!

"What my teacher taught me is that you should not be too greedy in life, but you should recognize your own depth."

Duan Lang smiled slightly and said, "So, before Lubanmen has a strong backer, he will never be able to obtain the ability to mass-produce holy artifacts."

A strong backer?

Lu Qianshe's eyes lit up, and his whole body was trembling with excitement. Isn't his mentor, the holy leader of the Huanggu Duan family, the biggest backer of the Tianfeng Realm?

With a thud, Lu Qianshou fell to the ground again. This time, Duan Lang did not help him.

"Luban Sect is willing to join the Huanggu Duan Family and become a vassal sect of the Huanggu Duan Family. You also ask your mentor to take it in!"

Dig a trench!

Li Hongru and several other old men were stunned. Lu Qianshou reacted quite quickly! He was holding his thighs now?

"Okay! This Holy Lord gives you the identity of the fifth elder of the Huanggu Duan family! Sitting with the other four elders!"

Duan Lang was overjoyed and helped Lu Qianshou up. With Lu Ban Gate, he had huge resources and the laboratory could be repaired soon!

Even some research projects that have been cut off can be restarted!

Maybe his technological level will be further improved!

"Congratulations to Elder Lu!" "Elder Lu, we will be the same disciple in the future." "Elder Lu, take care of you in the future."

Li Hongru and the other four looked at Lu Qianshou with a smile. The Huanggu Duan family had merged with the Luban Sect. With the super smelting technology of the young master, wouldn’t the Huanggu Duan family be equipped with a large army of standard holy weapons in the future?

"Thank you all my colleagues."

Duan Lang looked at Lu Qianshou with a smile: "Elder Lu, do you want to stay here or follow this saint lord back to Mangdang Mountain?"

Lu Qianshou hesitated for a moment: "Mr. Master, if Qianshou follows you to Mangdang Mountain, he must re-diggle the ground fire and re-built the smelting house. This is a huge project.
Chapter completed!