People in gray robes were walking around busily, transporting items or handing over matters. There were bursts of ding-dong sounds coming from all around, and the scene was busy everywhere.
Shen Luo had never been to this kind of treasure refining workshop before, so he couldn't help but be curious. He kept looking around while walking.
Maybe because Ma Xiuxiu had already given instructions in advance, the people in the weapon refining workshop did not stop Shen Luo and the man in gray robe, and let them walk in.
The two turned left and right inside and soon came to a courtyard. In the courtyard sat a large black room with no windows, only a gray-black stone door, which protected even secrets.
The walls of the room were made of a kind of black stone without any gaps. It looked as if they were hollowed out and carved out of a whole piece of stone.
"Mr. Shen, we're here. This room is the weapon refining room." said the gray-robed man.
"What kind of stone is this? It looks very special." Shen Luo touched the wall and felt it was unusually cold and smooth, like satin. He couldn't help but ask.
"This is Wuhan Stone, which is extremely strong and has heat-insulating properties. It was mined and transported back from the Far North by our senior masters. If ordinary materials were used to build the refining room, it would be damaged within a few years because it could not withstand the high temperature." The gray-robed man explained as he took out a silver talisman and pressed it on the stone door of the refining room.
A ball of white light immediately appeared on the surface of the talisman and then merged into it.
A layer of white light appeared above the stone door, but soon dissipated, and the door slowly opened.
"Please come in, Mr. Shen." The gray-robed man led Shen Luo in.
The black room was quite large, only about ten feet in radius. On one side of the room sat a large foundry furnace, with some red charcoal blocks that had not yet been extinguished piled at the bottom of the furnace.
Near the foundry was a large basket filled with fist-sized pieces of special carbon stone with a slightly reddish hue.
There are two small gourd-shaped jars hanging on the wall next to it, and I don’t know what is inside them.
In addition to the foundry furnace, there is a large foundry table on the other side of the room, equipped with hammers, pliers and other tools.
"Mr. Shen is not proficient in refining equipment. Please explain to me how to use the things here." Shen Luo glanced around and quickly took in the situation in the room, and said to the man in gray robe.
"Yes. These are red carbon mixed with special materials. The temperature of the flame formed after burning is much higher than that of ordinary flames." The man in gray robe said, pointing to the red carbon stone in the basket.
Shen Luo picked up a piece of carbon stone, looked at it for a few seconds, and quickly put it back.
"These small jars are filled with saltpeter powder, which can further increase the temperature of the fire. The red charcoal and saltpeter powder together can melt most of the spiritual materials. Of course, it still can't compare with spiritual fire." The gray-robed man took down a small jar on the wall, which was filled with dark red powder like sand.
When Shen Luo heard this, he was secretly happy.
It does not require a very high temperature to melt the materials of the Pure Yang Sword Embryo. The flame from the foundry in front of you is enough.
The man in gray robe then explained how to adjust the flame temperature of the casting furnace and how to use the various tools on the casting table.