The so-called hundred refining refers to the tempering and forging again and again, so that all kinds of metals and minerals are completely fused together, and at the same time, in the tempering again and again, the impurities in the mineral materials are completely removed, and the mineral materials must be kept in the best condition.

This is the hundred refinements.

It sounds simple, but it's really quite difficult to do, and ordinary metals are just that, but this time the situation is different...... Maybe it was cut at Yang Tianxing's face, Zhou Bo originally brought a lot of dark iron, but on this basis, Yi Yun added all kinds of superb mineral materials.

The reason why these two super-best swords, Gan and Mo Ye, can be passed down through the ages is not only because of the skills of the two forging masters, the so-called skillful woman is difficult to cook without rice, even if it is a blacksmith with superb skills, if there is no good material cooperation, it is impossible to forge a powerful weapon, there is no doubt about this, so, in order to be able to forge this weapon, Yi Yun worked hard to add all the best materials he collected.

There are even several materials in it, and the quality is not below the dark iron. Of course, as the largest number of dark iron, it is still the body of this weapon.

"Tianxing Steel ......" Yi Yun's hoarse voice sounded.

After this sentence, Yang Tianxing immediately took action, took out a fist-sized stone from the raw materials next to him, and threw it into the furnace, under the scorching fire, the surface of Tianxing Steel gradually showed a trace of melting. This Heavenly Star Steel is an extremely rare mineral in the soul world, as long as a little bit is added to the weapon, the sharpness of the weapon can be multiplied immediately. However, Tianxing Steel has a disadvantage, that is, it is too rigid and easy to break, although Tianxing Steel is extremely sharp, but if it suffers a heavy blow, it is easy to break directly. This situation has caused a consequence, that is, although Tianxing steel is quite important to the sharpness of the weapon, it can only be reduced to the position of auxiliary materials forever, and cannot be used as the main material.

However, what is certain is that if you add some Tianxing Steel to Zhou Bo's weapon, the destructive power of the weapon will be increased exponentially.

About half an hour's work. The Tianxing Steel was completely melted, Yang Tianxing immediately used special equipment to clip out this piece of Tianxing Steel, and Zhou Bo next to him immediately picked up the hammer and smashed it directly from mid-air.

The thumping sound continued.

Yi Yun was forced to rest by three big men because her body was too weak, but this woman was still the commander of this forging room and controlled the overall situation.

Melt again and again. Tempered again and again...... It seems to have reached a dead end. If you don't experience it yourself, you will never be able to understand what it feels like, Zhou Bo, Yang Tianxing. and Song Zihao, the three of them are all masters in the soul world, not to mention this small iron hammer, or even heavier things. For three people, it's no problem at all.

In their eyes, it may seem like a fairly simple matter. But...... This is not the case, and there may not be any problems in the short term, but ...... After a long time, even Zhou Bo felt a little unbearable, his body was extremely tired, his bones were almost completely stiffened, and the hammer in his hand became more and more heavy.

Damn, I look like this, I can't imagine that Yi Yun, a delicate and delicate little girl, can actually support ten days under such heavy physical labor...... That's right, for ten days, Yi Yun has been working here...... It's hard to imagine how such a little girl can hold on, and that petite body seems to contain a kind of strength that these people can't understand.

"Fire Marble ......"

"Bronze ......"

"Ugin ......"

Pieces of ore, rapid smelting, these ores are all carefully refined by Yi Yun before, basically without any impurities, and they have long been tested by thousands of tempers...... However, there is no doubt that Yi Yun is also a rather stubborn, even stubborn and somewhat rigid person, even if these ores have been tempered countless times, but Yi Yun still refuses to give up, thousands of tempering is the foundation of Yi Yun, no matter how pure these ores are, as long as they start forging again, Yi Yun will always abide by such Acura rules, and will never change.

Perhaps it is this kind of old-fashioned that can make Yi Yun a real forging master...... These materials have been tested for the second time, and it can be said that the degree of purity has almost reached an unpredictable point, and this weapon, if it can really be formed, its effect is only more perverted than Song Zihao's previous hundred steel knives.

The more they got to the back, the more excited everyone became, with the help of three people, even if they were tempered, compared to before, they didn't know how many times faster Lu Dao was.

Originally, it took Yi Yun seven days to temper the materials, but this time, it only took three days, and it had been completely done, all the materials were processed, and each piece of material was shining with pure luster, the original dozens of kilograms of Xuantie now did not even have two-thirds of the weight before, and the others had been discarded, increasing the sharpness of the Tianxing steel, increasing the toughness of the Ujin, and increasing the fluency of the fire marble...... The pieces of ore look all brilliant and attractive.

All the ore has been tempered, and the rest is smelting...... Fuse all the ores together, and turn things that don't belong to the same material into a whole whole.

This is also a very important thing, especially the ores of Xuantie, Huoyun, and Tianxing Steel, all of which are ores with extremely high melting points and are quite difficult to melt...... This process is particularly important.

The temperature must be high!

As the owner of this weapon, Zhou Bo had to come over to take on the temperature matter, two thick arms, grasping the lever of the bellows, twitching vigorously, the strong wind appeared, the charcoal fire in the furnace immediately began to burn wildly, and the temperature in the entire forging room became extremely terrifying.

On the other side, according to Yi Yun's command, Yang Tianxing and Song Zihao threw various ores into the furnace according to different times and different melting points...... (To be continued......)