The atmosphere behind was a little depressing, and the two old men also felt it, so they tried to talk about light topics as much as possible.

But Wang Qi could still see the sadness under the forced smile on the face of the second elder.

This sumptuous dinner lasted for two hours and didn't end until almost ten o'clock.

Wang Qi thanked the two elders and got up to say goodbye to the two.

Liu Yufen asked Wang Qi to go to her house for a night's rest, saying that her home was in the Yangtze River Garden on Zhigang Avenue in Liujiaping, a riverside house, which was originally intended to be used as a wedding room for Lele in the future, and no one usually lived in it.

Wang Qi was embarrassed to go to live in someone's house, and hurriedly refused, saying that he would go back to sort out some information and use it at work tomorrow.

When the two saw that Wang Qi still had something to do, they stopped persuading him, but just told him vigorously that he would be free to play in the shop in the future.

Wang nodded and agreed, and in his heart he had already regarded the two as a pair of forgetful friends, and he was ready to move around like friends in the future.

Anyway, he is now alone and lonely, and when he encounters the New Year's holidays, when other people's families reunite, and when the family is happy, he is even more miserable and lonely; and Liu Yufen and Guo Dahai are also like him, they have no children and no parents, they are lonely, and they are so lonely that they are just "hugging together to keep warm" and "spending the difficult times together"! With the two of them and their enthusiasm for him, their arrival must be very welcome!

Before leaving, Wang Qi saw that there were lead pipes for sale in Liu Yufen's shop, so he proposed to buy a lead pipe as a clothes pole, not for him to use, but for a few colleagues in the dormitory. There are six people living in his dormitory, and there are too many people to dry their clothes.

But don't take the lead pipe, that thing is poisonous, let's take the stainless steel pipe, it's beautiful, and it's not rusty. Liu Yufen glared at him, then got up and went to the back warehouse to get a pipe for him.

But there were already a few stainless steel pipes in Wang Qi's cube, and they were melted into a stainless steel ball about the size of a lead ball by him at a high temperature. The main purpose of his visit to the steel market today is not to get any stainless steel pipes, but to make a lead pipe and melt it to make lead bullets!

Wang Qi stopped Liu Yufen and said that he was going to take lead pipes, lead is poisonous, but it is toxic to turn into lead ions and integrate them into the blood, usually a few touches are not in the way at all, primary and secondary school students all over the world are playing with shot put, it is really poisonous and human beings have long been extinct.

"Hehe, Xiao Qi is still educated, you Aunt Liu and I really don't understand, I heard others say that lead is poisonous, so I spread it. Since you're going to want a lead pipe, take a lead pipe. How many do you want, Xiao Qi, do you want one for each of your colleagues?" Liu Yufen said with a smile.

"No, no, no...... Two lead pipes will do. Then, add another stainless tube from last time. Wang Qi said. After thinking about it, he felt that since he had the opportunity to get more stainless steel and lead, why not prepare a little more? Although he was not prepared to fight, in modern society, especially in China, there is almost no use for firearms, but it is always good to be prepared, and it is always good to be prepared, anyway, the volume of the cube is large enough, and a few hundred more steel bullets and lead bullets will not take up much space.

A stainless steel pipe of Φ25×2.5 (diameter 25mm, wall thickness of 2.5mm), plus two lead pipes of Φ25×2.5, six meters long, were cut into 18 sections of 1 meter long pipes by Guo Dahai with a cutting machine, and packed in a snakeskin bag.

When the two saw that the bag of pipes was at least fifty pounds, they said to Wang Qi that if he didn't wait for him to get off work tomorrow afternoon, his Uncle Guo would send the pipes to the dormitory on a motorcycle.

Wang Qi didn't want to trouble others, so he lifted the snakeskin bag with one hand, and said with a smile:

"Hehe, it's not in the way, Aunt Liu, Uncle Guo, this little weight can't bother me!"

Guo Dahai helped him carry a bag of steel pipes, and the two old mouths sent him to the side of the road at the gate of the steel market, Liu Yufen stopped a taxi for him again, and gave him fifty yuan to the driver before him, so that he could not return more and make up for less when the time came, Wang Qi couldn't push it off, and said that he was in a hurry, Liu Yufen put on her face again If Wang Qi disagrees, then don't take the pipe or anything, and don't use it in the future, which can be regarded as repaying the love of the two for themselves.

"What J0B white road and underworld, in the eyes of Lao Tzu, the 'judge of life and death' and the 'spokesman of death in the world', are just stinky 'sewers'!

"Xiao Qi, when you are free in the future, you must come to see your Uncle Guo and your Aunt Liu often?" The two of them stood on the side of the road, looking at Wang Qi, who had already sat in the taxi, Liu Yufen couldn't help but cry out, looking at his eyes and expressions, like looking at a child leaving home.

"Don't worry, Aunt Liu, Uncle Guo, as soon as I am free, I will come to see you! Aunt Liu's craftsmanship, I still can't get enough of it, and the aftertaste is endless!" Wang Qi smiled and nodded and waved to the two, making up his mind that if Liu Yufen and Guo Dahai could always treat him like this, then the three of them "will never lose my love" and "they are all fallen people at the end of the world", and they will walk around each other like relatives and friends in the future.

The taxi drove away and merged into the endless stream of traffic in the night.

Wang Qi looked at Guo Dahai and Liu Yufen behind him through the wind shield of the back window. The two of them were still standing on the side of the road, watching the taxi he leave, lonely and alone. As the taxi flew by, the figures of the two became smaller and smaller, smaller and smaller, and finally completely integrated into the city lights in the vast night.

At this time, Wang Qi suddenly remembered a sentence, he couldn't remember where he read it, and the original text was not clear, it probably meant:

Only those who have been cruelly treated by fate will especially cherish the hard-won kindness and warmth in life!

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In the next two days, after work, after dinner, Wang Qi took advantage of the free time to go to the nearby Olympic Sports Center for a walk, and began his task of casting all-steel warheads and all-lead warheads in the cube.

Casting can be said to be a kind of metalworking technology that human beings have mastered very early, and it has a history of more than 6,000 years.

That's right, it's longer than the 5,000-year-old Chinese civilization! It was first discovered and used by the ancient Babylonian civilization more than 4,000 years ago.

No matter what kind of casting, there are basically three steps:

1. Smelt the metal, heat the solid metal into liquid metal.

2. Manufacture of molds, that is, containers containing liquid metal.

3. Pouring, as the name suggests, is to pour the liquefied metal into the mold and mold, and then wait for the metal to cool down and break the outside mold, or take the formed metal out of the mold.

Of the three steps, the first step is to smelt the metal and the third step is very simple, one is heated and the other is poured.

The most troublesome is the second step, which is to make the mold.

Because liquid metal is generally above 1000 degrees Celsius, the melting point of the container is required to be higher than that of the liquid metal contained, otherwise, the container will melt when it is poured with liquid metal.

In reality, according to the different casting materials, it can be roughly divided into two types: sand casting and special casting.

Sand casting, as the name suggests, is the use of sand as a casting mold material, also known as sand casting, turning sand.

Special casting, the use of other casting materials, what clay molds, wax molds, metal molds, etc.

For example, the metal mold is the black technology used by countless protagonists to dominate the world, and manufacture artillery in batches.

Regardless of whether it is cast in the cube or in the real world outside the cube, Wang Qi can't get the above three steps if he wants to get the same type of warhead in batches, but because he has the assistance of the "artifact" of the cube, he can make the three steps of casting extremely simple.