Because Zhu Youjian required standardization and scale from the beginning, the products produced by Xishan Glass Factory are unified and standardized.

Although the products may be different from one furnace to another, the products of the same furnace are uniform.

It's no wonder that after seeing his own glasswork, Bi Maokang despises the stained glass of those handicraft workshops in the West.

While the two were talking, a figure hurriedly ran in, and Zhu Youzhen looked back and saw that it was Song Yingxing.

came to the front, after Song Yingxing paid a big salute, he stood aside and wiped the sweat on his forehead with his sleeve.

"The feast is over?"

Zhu Youzhen asked with a smile.

"It's over, it's over."

Song Yingxing hurriedly responded.

Early this morning, Song Yingxing was invited by the same year to go to the capital to party, although Song Yingxing was not a jinshi in the first year of Chongzhen, but because he was promoted by Zhu Youzhen, it was also regarded as the same year of this subject.

Today coincides with the Spring Festival holiday, and a few of them got together in Beijing in the same year.

Song Yingxing, who was far away in Xishan, rushed to the capital early in the morning, and just after playing with his colleagues for a long time, he just arrived at the restaurant and sat down, and his agent quickly found him.

His Majesty is here.

Song Yingxing didn't dare to slack off, and after confessing in the same year, he hurried back.

Zhu Youzhen didn't care about this kind of interaction between the same year, in his previous life, the relationship between colleagues who joined the company was naturally closer, and it was even more common to have dinner together.

Therefore, when Zhu Youzhen learned that Song Yingxing had gone to the city to have dinner with the same year, he did not let people recruit him back, but his agent felt that the matter was inappropriate, so he rushed to the city on his own initiative and recruited him back.

Seeing that Song Yingxing was in a hurry, the dust on his face was mixed with sweat, and his face was about to be spent, Zhu Youzhen said.

"Let's go wash first."

Song Yingxing didn't dare, and directly wiped it on his face with his wide sleeves.

Seeing this, Zhu Youzhen smiled and did not speak, turned around and continued to look at the glass factory.

Zhu Youzhen stretched out his hand and took out a piece of glass, although it had achieved the effect of flat transparency, there was a lot of blistering inside.

"Your Majesty, the old minister has fully stirred according to the method you explained, and the big bubbles are gone, but there are still a lot of small bubbles."

Bi Maokang asked Zhu Youzhen with some puzzlement.

"This bubble removal is indeed a difficult point, and the speed of manual stirring must not be able to keep up, and some bubbles are certain."

Zhu Youzhen put the piece of glass in front of his eyes and checked its light transmittance through the glass.

In addition to the bubbles and size, the glass produced by Xishan Glass Factory today is almost the same as the glass that Zhu Youzhen saw in his previous life.

Although there are a lot of these small bubbles, if they are simply used as glass windows, they are barely qualified, but the shape is too small.

"It's a little small, at least you have to see a foot square."

Zhu Youzhen took the palm-sized glass and said to the two behind him.

"Your Majesty, the ministers and others have also tried to make large pieces of glass like the one you mentioned, but they are too easy to break, and sometimes they can make a piece by chance."

This time it was Song Yingxing who answered, and Bi Maokang next to him went to get a relatively large piece of flat glass.

"Your Majesty, you see, this is a large piece of glass that was made when you were lucky."

Zhu Youzhen took the piece of glass that was one and a half feet square, and felt that it was a bit of a glass window in the future, so he took a closer look, and then turned around and handed it to the guards beside him.

However, the guards around him just took it and didn't put it down, and it broke with a snap.

The guard grabbed the remaining glass residue in his hand, looked at the Son of Heaven with some nervousness and timidity, with an innocent face, and said in his heart: I really didn't do it, I really don't know what is going on.

For the value of glass, this guard naturally understands, such a large piece of transparent glass, in the shop in the capital, to say the least, is worth a thousand taels, and he can't afford to sell it.

Facing the guard's cramped expressions, and looking at the embarrassment on Bi Maokang and Song Yingxing's faces, Zhu Youzhen couldn't help but smile.

In the previous life, when the glass was broken, the first thing that came to mind was whether it hurt anyone, but in the Ming Dynasty, it was necessary to take care of the broken glass first.

"It didn't hurt, did you?"

Zhu Youzhen stared at the guard and asked with concern.

When the guard heard this, his face was incredulous, and then he knelt down and confessed.

"It's just a piece of glass, and it's not your fault besides, don't take it to heart, it's good that the person doesn't hurt it."

Seeing that Zhu Youzhen was so generous, everyone was relieved.

Because of the high cost of glass, the production of the glass factory is absolutely confidential, and the workers and craftsmen are carefully selected by the Jinyiwei office in Xishan to ensure loyalty, kindness and steadfastness.

In addition, all the craftsmen and workers of the glass factory practiced the joint sitting method, one leaked secrets, and all sat together, so that they supervised each other, and of course their families were also monitored.

Although Zhu Youzhen was very ashamed of this kind of practice of harming his family or sitting together, Zhu Youzhen had to say that in the era when ordinary people were not enlightened, this kind of cruel feudal punishment still had a basis for implementation, and it was more effective.

For all kinds of leftovers and defective products produced in the glass production process, Bi Maokang also has people to carry out unified recycling, and it is strictly forbidden to hide and take them out of the factory without permission.

Although Zhu Youzhen disdains these leftovers and defective products, if he gets them to Jingshi's jewelry shop, he can also sell a lot of silver.

Of course, Bi Maokang did not use these waste products to sell them uniformly, there is a special shop in the glass factory that reinforces waste products, and the re-smelted glass is more resilient than before, and there are fewer bubbles.

The large piece of glass that Zhu Youzhen looked at before was produced in the furnace workshop.

And from this, Bi Maokang also thought about some doorways, whether to smelt the glass several times, and whether the molding degree is better.

Seeing the glass rerefined from this furnace, Bi Maokang was a little unsure, so he stepped forward and asked tentatively.

"Your Majesty, do you think that this glass is like forged steel, and it needs to be smelted twice or more times to be tough? I hope that Your Majesty will teach you. ”

"Glass and steel are two different objects, one is strong and the other is brittle, and they should not be confused."

Zhu Youzhen had never heard of glass smelting in his previous life, so he directly shook his head at Bi Maokang's suggestion.

While thinking about it, a furnace of glass solution came out, and the craftsman placed the hot glass on top of the flat grinding tool, and then crushed it repeatedly with a large smooth iron roller.

The formed glass is then cooled, and when the red light fades, it is immersed in water.

After waiting for another quarter of an hour, when the glass had completely cooled, Bi Maokang ordered the craftsman to carefully remove it and put it on the board.

Seeing that this was a complete piece of large plate glass, Zhu Youzhen didn't feel very happy, but Bi Maokang and Song Yingxing didn't have a look of joy on their faces.