Cold iron ore is generally found in the northern extreme cold lands.

The Xuanbing Empire is frozen all year round, and perhaps this piece of cold iron is contained in its geology.

Han Feng thinks that it will not work, although he has not been exposed to iron-making in his previous life, but he still knows a thing or two about metal smelting through reading books.

This kind of cold iron contains ice elements, which is a derivative of a mixture of gold and ice, and the melting point must be extremely high.

However, now that the long swords of the two of them have been shattered by Ninilu, the shaping can indeed have a sword that can be formed quickly, but the toughness cannot be guaranteed, Han Feng doesn't want his long sword to shatter again, and his sword intent will be damaged in the long run.

It is necessary to know that the sword practitioner must first rewrite in order to slowly resonate with the sword.Han Feng plans to break through the battle king and then consider the creation of his long sword after he is idle, and he can't say that he has to find materials again, although the best dark iron ore is rare, it is not a precious mineral, maybe in the future, he will need to consult the blacksmith to smelt and quench the weapon, and then put some necessary quenching agent in the furnace.

The previous contact between his body and Han Tie made Han Feng understand this.

There is no problem in shaping Han Feng, but the previous contact with Taylor in the Asaro market has made Han Feng deeply understand that gold shaping only converts the shape of metal into the shape required by the magician, but its firmness, sharpness, combat qi conductivity, and ductility will be greatly reduced.

The reason why the sword between himself and the sky was interrupted by Ninilou was because Ninilou's strength was amazing, and the gap in the level of battle qi was too large, but on the other hand, his shaping may have only changed the shape of the dark iron, and its density was still no different from the density arrangement of the dark iron ore.

Without tempering, the order of the gold elements has not changed, and it still can't avoid the end of shattering.

Han Feng couldn't think of any good solution for the time being, so he could only transform the cold iron into a long sword and let it be used by the sky first, and the cold iron of about 100 catties was only the size of a head, and it could not be shaped into a long sword.

Han Feng ignored the dissuasion of the wind and placed his hands on the cold iron, and his spiritual power began to operate at a high level, and countless gold elements slowly poured out of the cold iron into Han Feng's body, and the temperature in the room became lower and lower as the gold elements were withdrawn, and they were all about to catch up with the cold ice barrier of Captain Chi Jing.

Han Feng's hair had already been covered by a burst of white frost, and the cold air invaded Han Feng's body along with the gold element, Han Feng had to use his luck to protect all the organs on his body to resist this biting cold, and the cold iron in Han Feng's hand also became more and more brittle with the withdrawal of the gold element, and its complex texture began to become lighter and lighter.

For an hour, a whole hour, the golden magic enchantment was already filled with cold and piercing gold elements, some of which were slowly absorbed by Han Feng's spiritual sea, and more gold elements were free from the air, and the cold iron in Han Feng's hand had already been pumped to only a layer of epidermis, and slowly began to deflate with time.

Han Feng opened his eyes and exhaled a deep breath of white air.

I thought that this shaping was a simple matter, but after the spiritual power came into contact with the cold iron, Han Feng was shocked to find that the arrangement of the gold elements inside the cold iron was different from the arrangement of the black iron ore, and countless gold elements were densely accumulated in one place and then frozen by the cold air, and the entire cold iron was basically composed of gold elements densely squeezed together, and the spiritual power and mana used during the period were more than ten times higher than the cost of extracting the gold elements of the black iron ore.

What Han Feng couldn't understand was why the structure of this cold iron was so peculiar, could it be that this cold iron was buried deep in the ground or hidden deep in the depths of the sea? These two places have one thing in common, that is, the pressure is extremely high, and the taste of being buried alive tens of thousands of meters underground is absolutely unpleasant, and the depth of the sea is even more the same, the pressure generated by the endless water pressure is enough to change the density of any substance.

Thinking of this, Han Feng felt a flash of light from the free gold element in the enchantment. The Xuaniron Mine beside him began to change slowly, compared to the cold iron, the extraction of the Xuantie gold element was very easy, and the two gold elements began to fill the inside of the enchantment, and the sky looked at Han Feng in the circle and waited anxiously.

Han Feng began to get busy again in the enchantment, and the textures began to be slowly depicted, this time in order to achieve a better effect, Han Feng took out the earth crystals and quickly ground them into powder to prepare the base raw materials of the formation, and arranged a double gravity enchantment.

When the preparations were ready, Han Feng began to forcibly compress all the gold elements, and the free metal elements in the air began to turn into granules and then quickly condensed into spheres. Han Feng's spiritual power began to guide slowly, and the spherical metal body slowly appeared like a liquid in the shape of a long sword, floating in front of Han Feng.

Han Feng took the long sword and put it into the core of the gravity enchantment depicted earlier. The double gravity enchantment was activated, and the floor of the entire dormitory could no longer withstand the weight and broke inch by inch, and the long sword began to sink downward, sinking deep into the ground.

Han Feng induced spiritual power and began to inject mana into the sword, and the gold element of the long sword was suppressed by gravity and began to slowly merge, since Han Feng learned to pulse, this is the second time to try this pulsation principle, countless gold elements slowly vibrate, and the gaps in the arrangement slowly become tighter and tighter with the vibration.

A cup of tea, a cold* man's sword has been formed. There was a golden magic array in the center of the sword spine, which was not depicted, but Han Feng's inspiration.

The magic array is just a second-level gold magic that increases the sharpness of a weapon. As for the material, it is a mixture of the previously ground earth crystals and cold iron.

It is believed that this sword will be sharper after it is opened, making the assassination attack in the sky even more strange and cold.

Let's just keep calling it a blast