Duan Lang grinned: "For the sake of Lord Lu Men helping Duan a lot, Duan can tell you that your so-called perfect-grade steel is only a medium-material steel, which is the smelting limit of ordinary iron ore."

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

There are some rare elements that are harmful to steel, and some rare elements that are beneficial to steel.

Cutting out harmful and rare elements, fusing beneficial and rare elements, the quality of steel will be greatly improved, and you can get real top-level composite steel. ”

Lu Qianshou was stunned for a moment, after all, the gap in science and technology between the two sides was hundreds of years, and even the first industrial revolution had not been reached.

What are the elements, and what are the composite steels?

While the two were talking, the disciples finished cleaning the slag and looked at Duan Lang with a respectful expression: "Holy Lord Duan, after the slag is cleaned, can you start smelting refined copper?" ”

"Open the fire valve and start preheating and raising. ”

"Yes!"

"Feed!"

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

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

Soon, 200 catties of refined copper were baked.

Lu Qianshou threw himself to the ground with the five bodies that Duan Lang admired, if Duan Lang was not the Holy Master of the Ancient Duan Family, even if he paid a big price, he would dig Duan Lang to their Luban Gate!

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

Duan Lang grinned, this Lu Sect Master is an expert! There is no such thing as a thermometer in the Heavenly Seal Realm, and he has accurately estimated the combustion value.

Duan Lang didn't hide his secrets, and said in a deep voice: "Actually, it doesn't hurt to tell Lord Lumen, but I don't know if Lord Lumen can understand." Let me ask first, how much does Lord Lu know about Earth Fire?"

Lu Qianshou said in a deep voice: "The earth fire is some biogas underground, which should be the gas formed by the fermentation of decaying animals or plants for thousands of years. ”

Duan Lang clapped his hands gently, the Heavenly Sealing Realm is in a feudal society, Lu Qianshou has this insight, it is really amazing!

"Yes, Lord Lumen, what is your opinion on biogas? What is biogas made of?"

At this moment, Lu Qianshou was a little blind, in the Heavenly Seal Realm, there was no microscope, and his understanding of the elements was minimal, how could he know the difference between the microscopic and the microscopic?

"Please also ask Lord Duan for teaching. ”

Duan Lang hesitated, if he used academic language, Lu Qianshou would definitely not understand.

"In words that you can understand, the composition of biogas is very complex, so it is understandable that biogas that seems to be a uniform biogas has many different gas compositions. ”

Lu Qianshou's eyes lit up: "I understand! Different gases have different combustion values! And xenon and radon parts can refine the gas with the highest combustion value, right?"

Duan Lang looked at Lu Qianshou with an approving gaze, this old man can, if he is put in modern times, he will definitely become a famous scientist.

It's a pity......

"That's pretty much what it means, the xenon and radon components react with the lower combustion value, and the gas that comes out of the ground fire pipe is the gas with the highest combustion value, so in your opinion, the combustion value of the earth fire has increased by four times. ”

With a pop, Lu Qianshou knelt down for Duan Lang and bowed!

Although Master Duan and Thousand Hands do not have the name of master and apprentice, they have the reality of master and apprentice!"

Duan Lang was taken aback, how could the people of the Heavenly Sealing Realm be so simple? How could this old man say that he would kneel and kneel! You are seventy or eighty, right? I can be my grandfather!

How dare Duan Lang accept the kneeling of the old man?

Duan Lang hurriedly helped Lu Qian's hand up: "Master Lumen, you are serious, we are just a normal academic exchange, perhaps, one day in the near future, Lord Lu can also solve my doubts." ”

Lu Qianshou's attitude was very firm: "No matter what the master thinks, here in Qianshou, you will always be the teacher of Qianshou!

Duan Lang rolled his eyes, this old man is not stupid! No wonder he knelt and knelt, it turned out that he had taken a fancy to xenon radon!

But if you are the only one who calculates, so will the Holy Lord!

Duan Lang shook his head decisively: "This can't be done, can Master Lu understand the truth of his guilt? If Lord Lu gets the production method of xenon radon parts, the smelting process will be greatly improved!"

Will someone use their brains?

If a certain top-level sect had an army that was all equipped with holy weapons, wouldn't it be able to sweep through the entire Heavenly Sealing Realm in an instant?

Swish!

A large piece of cold sweat broke out on Lu Qian's skull!

Yes, if the Luban Sect can build holy weapons in batches, those top sects will definitely not let them go! They will even be detained and become slaves of a certain top sect to build war preparations!

"The teacher's lesson is that you can't be too greedy, and you must recognize your own depth. ”

Duan Lang smiled slightly, and said, "Therefore, before Lubanmen has a strong backer, it is absolutely impossible to obtain the ability to mass-produce holy weapons." ”

A strong backer?

Lu Qianshou's eyes lit up, and he trembled with excitement, his mentor, the Holy Master of the Ancient Duan Family, wasn't he the biggest backer of the Heavenly Sealing Realm?

With a pop, Lu Qianshou knelt on the ground again, and this time, Duan Lang did not help.

"Lu Banmen is willing to join the Desolate Ancient Duan family and become a vassal sect of the Desolate Ancient Duan family, and ask the teacher to take it in!"

Dig the groove!

Li Hongru and a few other old men were dumbfounded, this Lu Qianshou reacted quite quickly!

"Okay! This Holy Lord has given you the status of the fifth elder of the Desolate Ancient Duan Family!

Duan Lang was overjoyed, and helped Lu Qian's hand up, with Lu Banmen, it is equivalent to having huge resources, and the laboratory can be repaired soon!

Even, some broken research projects can be restarted!

Perhaps, his technology level will be further improved!

"Congratulations to Elder Lu!" "Elder Lu, we will be the same door in the future. "Elder Lu, take care of me in the future. ”

Li Hongru and the four of them looked at Lu Qianshou with a smile, the Desolate Ancient Duan family had annexed the Luban Gate, coupled with the super smelting process of the son, wouldn't the Desolate Ancient Duan family be able to equip an 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 do you want to follow this Holy Lord back to Mangdang Mountain?"

Lu Qianshou hesitated for a moment: "Master, if Qianshou follows you to Mangdang Mountain, you must re-excavate the earth fire and rebuild the smelting room, which is a huge project.

Qianshou will first sit in Lubanmen, wait for the completion of the project of Mangdang Mountain, and then move the faction, what do you think?"