The barrier opened, and the insane heat rushed out, and the dirt on the nearby ground quickly turned black.

Huang Mingshan and the others wore armor and rushed in without hesitation, directly using a thick shovel to transfer the molten iron suspended on the barrier to the rudimentary mold.

This time, just to verify the processing results of the dark iron, the molds are very simple. The products of casting are mainly thick iron plates, thick-backed broadswords, hammers, chisels and other relatively thick and clumsy things. These materials are marked as 'Class A'.

Huang Mingshan and the others retreated after finishing their work, waiting for the Xuantie to cool down.

In the enchantment next to it, the aura was still tumbling, and there were no more changes. As time passed, the aura gradually seeped out of the enchantment and dissipated little by little.

Zhang Hao thought thoughtfully: "It seems that the enchantment is not completely isolated from the aura. After a certain level, it will gradually dissipate. Huang Mingshan, open a corner of the formation and disperse the aura. ”

The aura of more than five million spirit stones seems to be about to be wasted.

But when the scorching and tumbling aura rushed out, the aura cooled quickly, and the thick aura suddenly became extremely viscous and the colored light flowed.

Zhang Hao suddenly felt refreshed. Take a deep breath, but feel that the aura is unprecedentedly active, and when you take a breath, you can faintly feel the progress of your cultivation.

"This ...... This...... If I practice in such an environment, I can reach the Yuan Infant Stage within a year!, and I don't even need pills!" Zhang Shengye was a little incoherent.

Zhang Shengde was more calm, he felt it carefully, and shook his head: "It's not that simple." I think those who live in the blessed land of the cave can enjoy this kind of cultivation every day, but they don't necessarily all achieve the primordial infant, and they still need the elixir.

Cultivation requires contemplation, and the levels and bottlenecks in the body also need to be opened with the help of pills. There are some medicinal properties that cannot be replaced by Reiki.

But...... It should be able to replace Pei Yuan Dan and other pills that assist in cultivation. It's just that creating such an environment will be more expensive than pills!"

"Forehead......" Zhang Shengye smiled and stopped talking.

Zhang Hao looked at the tumbling aura, but he had some thoughts: "Dad, if we can bind such an aura in a small area, maybe we can create a person for the benefit of the land and promote the rapid growth of the family."

Nowadays, there is a shortage of pills and no trade routes, since there is a way to reduce the demand for pills, we should try. ”

Zhang Shengde thought for a moment and nodded immediately. "When Huang Mingshan and they have free time, they will study it and arrange such a cultivation space. ”

"Okay. Zhang Hao nodded.

The aura in the enchantment gradually dissipated, the temperature also dropped, and I saw the molten iron that also melted in the enchantment. Huang Mingshan and the others were busy again, although they knew that they should fail here, they were still meticulously busy. However, these materials are marked as 'B'.

After that, it's a matter of waiting, waiting for the darkiron to cool.

Some of the dark iron is cooled naturally, some are slightly solidified, and then they are taken out for forging, and some are directly quenched.

Zhang Hao waited here, but Huang Mingshan and the others were busy with their feet not touching the ground. Although they had not slept all night, everyone was in good spirits.

It wasn't until the afternoon that all the blackiron was finally processed.

This time, about two tons of black iron were used for the experiment, and a variety of different purities were used, but during the test, all the black iron was melted together.

After cooling, Huang Mingshan and others began to experiment. The most direct way to inspect materials is to destroy them!

Huang Mingshan and the others first took down the high-quality magic weapon sword and poked all the items again, and the sonorous sound was endless; A batch of naturally cooled B-class iron plates, articles, etc., were eliminated.

And the sword that pierced the first class of the first item turned up or broke the blade.

Zhang Hao's eyes brightened - although it was only the first test, it had already made Zhang Hao see success.

Huang Mingshan and others were meticulous, and continued to poke with medium-grade magic weapons; a batch of second-class ones were eliminated; and first-class ones were still unharmed.

Then put on a high-grade magic weapon and continue to poke, poke, poke......

Time slipped away little by little, and when Huang Mingshan poked the naturally cooled first-class items with a medium-grade magic weapon, a dent finally appeared. But those forged and quenched still did not move.

It wasn't until Huang Mingshan poked with a high-grade magic weapon that he finally left a faint trace on the last first-class material, and the tip of the sword almost broke.

"What a hard black iron!" Zhang Shengde was amazed and stepped forward to identify it. But soon frowned. "Quenched, it is integrated, and the true yuan can't penetrate it. Only those that are naturally cooled and forged can penetrate the aura. The purity is between 85%~86%. ”

"I'll try!" Zhang Shengye came to a quenched iron plate, sacrificed his flying sword, and was about to attack.

"Second uncle, don't use your own flying sword, it's broken!"

Zhang Shengye was stunned for a moment, and then picked up a worn-out magic weapon flying sword from the side, and slashed it vigorously on a three-inch-thick, quenched iron plate.

The iron plate is sonorous and sparks. Zhang Shengye's strength in the Jindan period, coupled with a sharp magic weapon, was stunned and couldn't pierce this iron plate.

Zhang Shengye's subordinates didn't stop, and suddenly there was a sonorous sound, and the flying sword in his hand was broken. On the iron plate, only a small pit of no more than an inch remained.

Zhang Shengye scooped up the hammer, which had just been poured with first-class black iron.

A hammer smashed into the position just now, and the iron plate trembled non-stop, and the rock on the ground shattered, and the iron plate only had a slight depression.

Zhang Shengye continued to go crazy, the rock was shattered, and tiny cracks gradually appeared in the iron plate.

Zhang Shengye took a deep breath, stood up straight, picked up the hammer again, and smashed it down.

There was a bang, and the steel plate was completely shattered, like ordinary glass.

"Quenched, it is quite possible to form a 'vitreous body'. Zhang Hao thought so, his heart was still excited, and he said excitedly: "Dad, we succeeded, we didn't need to be different, we also got the top magic weapon quality materials, and it was a large piece of iron plate."

Once we have figured out the rules, we should be able to build a real, indestructible ship! A top-notch magic-level ship made entirely of dark iron!

We succeeded!"

Zhang Shengde was also excited: "Yes, we have succeeded, we have succeeded!

He turned his head to look at Zhang Hao again: "I think, we should take a new name for this new type of Xuantie." ”

"Let's call it 'steel'. A little light flashed in Young Master Zhang's eyes, "The so-called steel is rigid and unyielding. Look at this steel plate, in the end, it would rather be broken than bent. ”

Zhang Shengde looked at the broken 'steel' and nodded slowly: "Okay, it's called 'Gangtie'." ”

"It's steel. Zhang Hao wrote a 'steel' character on the ground, "This is a new material, and we should also make a new character." In this way, you can impress others. ”

Zhang Shengde smiled: "Okay, okay, steel, steel." Huang Mingshan, you've been busy all day, let's go back and rest first. ”

"Thank you, master, but there are still experiments to be done. Rest when you're done. ”

Huang Mingshan led the crowd to continue to classify all the materials in detail and record various data. Scientific research requires seriousness, rigor and responsibility.