Dozens of slaves of the Wise Ratman worked hard. First, Jilasha shoveled the ore on the ground, then loaded it on a small cart, and dragged it to the furnace. The furnace is located at the bottom of the riverbed. After the wooden board is mounted, the Wise Ratman can directly push the car to the feed port. When the car tilts forward, the ore will be easily poured into the furnace.

A red light emerged from the thick belly of the furnace, as if it was to be reflected through the furnace wall. Even if it was a few meters away, you could clearly feel the heat from the furnace.

When the heat subsided, the furnace trembled a few times, as if something was stirring inside. From time to time, gray and black smoke was spewed out from the exhaust port, and flames were also carried in the middle.

Then the outlet opens, and the red and hot iron flows down and is injected into the channel trough.

Fifty or sixty wise rats, each with a wheelbarrow, kept going back and forth between the riverbed and the furnace, barely able to keep up with the speed of the furnace melting.

The molten iron flowed down from the beginning and gradually filled each module. Robb had calculated that according to the speed of refining in the furnace, when the last rows of modules were filled, the first filled module had already condensed. The red bricks could be easily hooked out of the module with a hook, so that new modules could be vacated to accommodate more molten iron without shutting down the furnace to wait for cooling.

The efficiency of this method of furnace is very high. In half a day, more than 70 tons of iron bricks have been refined. However, the energy consumed by the furnace is also amazing. In just half a day, Rob had poured more than 100 level one magic crystals into the furnace. If it were Rob's previous gold and wood body, these magic crystals have been used for more than ten years.

If it were before, Rob probably had stopped this high-energy-consuming work, and seventy tons of iron bricks were barely enough. However, catching magical multi-demonic creatures like the Earth Demon, just the newly harvested more than fifty level 4 magic crystals will give Rob full of confidence and continue to refine hundreds of tons.

No. 7 waved the drill bit and stabbed it accurately at the most fragile point. The large riverbed was lifted up by it. All the body, only the joints and soul core, as well as the drill bits and shovels, were made of flame iron, and the rest were just ordinary steel, but this was enough. When Rob designed this hexapod structure, he treated them as excavation tools, and did not require high-intensity combat, so he did not need a body with too high strength.

At the beginning, Jirasha was just a metal-wood body, and she still dug out a few hundred meters of escape passage. The current steel body is enough for No. 7.

Moreover, the drill bit and shovel are made of iron, which makes it even more like a tiger when digging. Once it drills down, the riverbed immediately shatters.

If it weren't for its lack of soul intelligence, Rob might have also installed a broken blade on it.

The No. 7 drill drilled towards the riverbed, easily breaking the surface and going deep into it. A drill that was no different from before. When it was halfway through, it suddenly made a crisp sound and a click. The high-speed rotating drill bit was suddenly stopped. The torque at the high-speed did not disappear. He tilted his body to the side. After a few strokes, a stream of black smoke came out of the No. 7's arm, and the drill bit was broken.

Hearing the abnormality of No. 7, No. 6, controlled by Rob, ran over and saw that the joint position had been twisted.

Rob held the drill bit of No. 7, twisted in reverse, and retreated from the ground. After checking, he found that the entire arm of No. 7 was destroyed. The entire transmission structure in the arm was twisted into a ball of twist due to the reaction of torque. On the contrary, the drill bit itself was not damaged too much, but there was a side slit at the top.

It can break a hole in the drill bit made by Yantien and make No. 7's arm stuck. It will definitely not be an ordinary stone.

Rob asked the furnace to stop for a while, then summoned Jirasha to clean up the area where the drill bit was stuck.

Jilasha's whole body is made of Yan Iron, and the body is much tougher than No. 7. Even if it is stuck, it will not be easily damaged.

The drill bit first carefully drilled and loosened the hole stuck in No. 7, then scraped off the floating soil on the surface, and after scraping it off layer by layer, a pool of dark blue metal appeared in the ground.

The metal presents a perfect curve, which is not naturally formed at first glance. The metal itself has a dark pattern, which is very beautiful against the backdrop of blue luster.

Rob walked up and knocked it. Ding, the metal made a very compact sound. Rob had never seen this kind of metal before. Unlike steel, it had very high hardness. Even the drill bit made of Yantien can get stuck, and the hardness is probably higher than Yantien.

Put your eyes on and carefully check the location where the drill bit was stuck. It was the edge of the metal. At this moment, a clear white mark appeared there, but there was no trace of damage to the metal, and the white mark was more like the one left by the drill bit.

Yantien is almost the most plastic metal that Robu can find with the highest hardness and the most plasticity. If the hardness of the metal in front of me is higher than Yantien, what kind of metal is it?

Before Jirasha could do anything, Rob himself controlled No. 6 and carefully drilled on the edge of the metal.

The scope of excavation was expanded bit by bit, and the loose soil was shoveled out layer by layer. The metal buried underground slowly showed its full view. A semicircular shape that was half-height of Rob, and a cylindrical metal bolt was pressed under it. Although the entire metal bolt had not been dug out yet, Rob was already sure what these things were. This was an arm component.

...

In the laboratory, a six-meter-high metal humanoid component hung on the shelf of all steel was not as thick as No. 5 and very slender, just like the average human body.

All parts of the body are made very close to normal humans, with all fingers and toes, and joints that are in perfect harmony and perfect.

If you see such a structure from a distance, it is difficult to distinguish the difference between it and normal humans, except that it is a little larger.

However, when you look closer, the difference is very big. The blue luster alone is obviously different from that of ordinary people.

I don't know how many years have been buried under the iron riverbed. Now, after being lifted out and washed away the dirt, it is completely new and there is no rust phenomenon that metal has been buried for too long.

There are no scars on the surface of the assembly, and there are not even traces of friction that the metal should normally have. The surface of the body is polished to a matte state, and only when it is close can you see the blue luster flowing on the surface.
Chapter completed!