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"These are all 'special metals' found on the spacecraft. Some of them are not particularly precious, but they are not found on the earth now. Without them, many advanced weapons cannot be built at all..." Seeing Mu Ge's surprised expression, Fang Chonghao explained without surprise that although Mu Ge was with them before, he walked away separately many times...

When I found these "special metal" rooms, Mu Ge was not around Fang Chong and the others, so it was not surprising that he didn't know.

"What is this red?" Mu Ge nodded to show his understanding, then picked up an unknown metal with an extremely bright red color in his hand and asked...

"Red copper..." Fang Chong had learned in detail from Maya about the names of these "special metals", including their functions...

As soon as Mu Ge was picked up, he could say it without thinking about it...

"Red copper?" Mu Ge really couldn't imagine that "copper" was so beautiful. Compared with other ordinary cylinder blocks, these "red copper" are really beautiful...

"Is this thing useful?" After Mu Ge knew that these were all 'special metals', he asked curiously like a child who loves to study...

"It is not particularly effective, similar to 'liquid silver'. It makes the weapons made of have a certain degree of flexibility, and is used to ensure that the weapons made of swords or other weapons will not be broken due to excessive force..." Fang Chong explained that there are many types of special explanations, and the functions are very different. It is also beneficial to let Mu Ge and Qin Lan know more...

"It's just softness, then this 'red copper' shouldn't be a particularly precious 'special metal', right?" Mu Ge continued after hearing Fang Chong's explanation.

"Yes, the softness of the weapon is important, but the most important thing is its sharpness, and the degree of sharpness and flexibility are irrelevant..." Fang Chong was somewhat surprised that Mu Ge could think of these problems at once, nodded and continued...

"What are you going to use in these materials to make the main materials for the sword..." After Mu Ge heard that his idea was correct, he was curious about what Fang Chong wanted as the materials for the sword...

While Mu Ge asked Fang Chong, his hands did not stop. He curiously picked up this piece and looked at that piece...

………………………………………………..

"Yes, Mu Ge asked right, what material do you plan to use as the main material for the sword?" Mu Ge also asked. She knew about the types of special metals, but she also had a slight understanding of what is the best function...

Fang Chong had never discussed it with him...

"Being the main thing is black iron stone, just fuse the original broken blade into it..." Fang Chong did not expect that Qin Lan and Mu Ge were so curious about weapons today. After chuckling, he glanced at the table a few times, then took a piece of "black metal" the size of about three fists, and gently supported it and said.

"Black iron stone?" Mu Ge was surprised when he heard Fang Chong say such an ordinary name. When she saw that this 'black iron stone' looked similar to an ordinary coal stone, she was even surprised...

"Although it doesn't look particularly good on the surface, it belongs to one of the most solid ores in the universe..." Fang Chong seemed to have thought of Mu Ge's reaction for a long time, and nodded and introduced it by the way... "And with the technology we now have, it is already the limit to be able to use 'black iron stone' as the main material. Otherwise, it would not be possible to replace it with more advanced ores......"

"This is also..." Qin Lan nodded, showing that she understood. She heard the conversation between Mu Ge and Fang Chong.

Moreover, Qin Lan also knew that Fang Chong’s current technology was indeed difficult to be more advanced than it was…

"That's it, why don't we start directly?" Seeing Qin Lan say so, and Mu Ge probably guessed that, he didn't ask in detail, otherwise, it would be the same as asking at night...

"Okay, please help burn the flames of the 'steel furnace'. I'll find something..." Fang Chong was relieved when he heard Mu Ge say this. Although he was just talking about these questions, he was also exhausting...

"No problem..." After Fang Chong said this request, Mu Ge and Qin Lan nodded, and then went to do things...

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"Maya gave me the reminder last night that the 100% proportion of 'Black Iron Stone' is that 'Black Iron Stone' accounts for 40% of the total proportion of the sword, and the slash of the sword with the Blade Slash accounts for 50%, and the remaining 10% is casual..." Fang Chong saw the second girl go to work hard, but he found a place and sat down alone, thinking about the result of the discussion with Maya system last night...

"According to Maya, the level created by such a sword should be more than 160 levels..." Fang Chong stood up after seeing that Qin Lan and Mu Ge were almost the same, still holding a piece of black black iron stone in his hand...

"Fang Chong can start..." Mu Ge said excitedly when he saw Fang Chong stand up. Another new 'battle knife' was about to be born. She felt that she was still very good, especially a higher-level weapon...

"Well..." Fang Chong didn't want Mu Ge's excitement to cool down. After nodding, he threw the "black iron stone" in his hand into the "steel furnace". Fang Chong also made up his mind, listening to the Mayan system this time...

"Sizi..."

"Chakk…..."

As soon as the black iron stone was thrown into the steel furnace, it kept making crackling sounds. Such changes brought different sound effects to the extremely quiet factory building, and it became lively...

Fang Chong didn't speak, and Mu Ge was the same, but her expression was much more excited than Fang Chong...

In this way, the crackling sounds sounded for dozens of minutes...

……………………………………………….

"Silent, are you okay?" After the voice fell, Mu Ge quickly stretched his head over, preparing to see what it looked like inside...

"The refining of the black iron stone has been completed. Next is to put the broken blade into it..." Fang Chong finished speaking, and pulled out the broken blade from his body...

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Chapter completed!