Bai Li Feng made up his mind, turned around and took a piece of reddish-brown metal material, and threw it into the Nine Dragons Divine Ding.

This reddish-brown metal, known as gravel, is only found in the desert, and is tough but soft, and can be pulled and broken like a rubber band after a few moments of burning in the fire.

This material is very popular with refiners, because it does not take much effort to refine a weapon with this material.

However, this material is relatively rare, and even if you search for thousands of miles in the wilderness, you may not be able to find a piece of this gravel.

Therefore, in the outside world, it is generally rare to see people use gravel to refine utensils, and most of them are refined with some relatively common materials.

Baili Feng didn't know how Jiang Tianbei found this piece of gravel, but he had to say that this piece of gravel made him very satisfied.

He had been thinking that the reason why the black sword broke was probably not just because it was not tenacious enough.

As the saying goes, too rigid is easy to break.

The previous Xuanshuang Sword and the black sword that I later added new materials to refine were relatively rigid swords, and this kind of sword could not withstand too strong pressure at all, and it was easy to break when it encountered huge pressure.

So this time he planned to refine a more flexible sword, which could relieve those huge pressures and ensure that it would not break easily.

And gravel is a material that is obviously very suitable for his needs.

However, gravel gold alone is not enough, a good sword needs more good secondary materials in addition to good primary materials.

Gravel gold was used as the main ingredient by Baili Feng, so he first threw it into the ding, allowing the flames to scorch it to the extent that it could fuse with other materials.

The gravel was thrown into the Nine Dragons Divine Ding, and the white past roared as if a beast was roaring.

The flames rose into the sky, and the scorching temperature was even higher than before, which made Bai Li Feng frown, if it went on like this, he couldn't support it.

Under such a scorching flame, the gravel melted very quickly, so fast that Baili Feng couldn't help but be taken aback.

According to his senses, if it was burned at a normal speed, it would take at least half an hour for the gravel to melt completely, but now it was only half the time, and the gravel had already melted.

It's so efficient that people don't know what to say.

Bai Li Feng was slightly stunned, but quickly reacted, turned around and extracted several other materials, and threw them into the Nine Dragons Divine Ding.

"Star Iron, Luohe Sand, White Steel, Red Copper, Wave Silver, Frost Stone Powder......"

Several materials were successively put into the Nine Dragons Divine Ding, causing the white flames in the Ding to burn and roar.

It didn't take long for all of these materials to melt down, and under the control of Baili Feng, they each occupied an area within the Ding.

Baili Feng took a deep breath, focused his attention, and landed on the molten liquid in the ding, and then drove his mind to slowly gather each other.

It took more than half an hour for all the materials in the tripod to come together, forming a puddle of colorful molten liquid.

Baili Feng stared slightly, and then slowly drew out the molten liquid, fused with each other, and it took half an hour of effort, so that all the materials were perfectly fused together.

At this time, Bai Li Feng sighed slightly, raised his hands, and as he raised his hands, a column of liquid also rose in the middle of the pool of molten liquid, like a fountain.

After the liquid column in the center rose, Baili Feng's mind drove the liquid around the liquid column to slowly rise, surrounding the liquid column, entangled in circles and circles.

After about two hours, all the liquid was completely entangled together, forming the prototype of a sword in mid-air.

At this time, the prototype was still only the original shape, and it had not been carefully calcined, and the body of the sword was not flat, but round, like a cylinder.

Seeing this cylinder, Baili Feng's eyes condensed slightly, and led it out of the treasure ding, and then raised his right hand, and the cold air burst out and fell on the column, and suddenly only a "zizi" sound was heard, and a white gas came out, filling the entire secret room.

At this time, the cylinder had cooled down and turned into a hard cylinder.

Baili Feng threw it into the ding with his mind again, and as soon as the raging fire touched this column, it immediately roared, and after a while, this column was burned red again.

Baili Feng drew it out again, cooled it with cold air, and then threw it into the ding, burning it again, and so on.

This is not done for fun, but to completely remove impurities from the material.

Alchemy is not the same as alchemy, but there are also common principles.

Alchemy will remove the impurities of the medicinal materials for the first time when the medicinal materials are put into it, and then the impurities will be removed again in the process of condensing into the pill, so as to ensure the quality of the pill.

The same is true for refiners, where impurities are removed for the first time when materials are fed into liquid and then a prototype is formed.

The longer this process lasts, the better and the more times the better, as it removes more impurities from the melt.

In the end, the less impurities there are, and the higher the quality of the refined utensils.

What Baili Feng wants to refine is the weapon he uses, and naturally the more perfect the better, so although this process is a little boring and boring, he also takes the trouble to carry it out.

After repeating this step thousands of times, Baili Feng was already a little tired, and his physical strength and mental strength were a little overwhelmed.

He took a deep breath and glanced at the prototype of the ding, feeling a little happy in his heart.

At this time, the prototype was no longer the size it was originally the same, but nearly three-tenths smaller, and it has remained at this size for a long time.

This means that all the impurities have been removed, and all that remains is useful material.

Baili Feng stood in place, took a few deep breaths, rested a little, and then continued to get up.

He controlled the cylinder with his mind, little by little, gradually metamorphosing, slowly turning into the shape of a sword.

It took nearly three hours to complete this step, and by this time, the prototype had become a sword, but it was not a finished sword.

It only had the shape of a sword, but it lacked tempering.

The ancients have been tempered by thousands of tempers.

A good sword cannot be successfully refined by mind alone, and it must be hammered thousands of times to make it gradually sharp, sharp, and spiritual.

In particular, what Baili Feng wants to refine this time is a sword with flexibility, and such a sword must be hammered countless times before it can gradually have such properties.

Bai Li Feng drew out the sword, picked up the pliers that had been prepared with his left hand and clamped it, turned around and walked to the forging platform, pressed the sword on the forging platform, picked up a hammer in his right hand, aimed at the sword body, and slammed it down.

"Bell, bell, bell—"

The sound of the collision of gold and iron suddenly sounded, and it was endless, echoing throughout the secret room.

ps: Water a chapter...... Excuse me

(End of chapter)