After Cheng Chumo left the manor.

All the way sparks and lightning went straight to Chang'an City.

After listening to his son's words, Cheng Yanjin became short of breath.

"Ugly cow, is this serious?"

"Dad, my hands are about to be broken by you!"

Cheng bit Jin Pu's big slap, full of strength, and grabbed Cheng Chumo, just like an eagle catching a chicken.

"Ugly cow, it's all my dad who is too excited, this news is my dad's big heart, and I can't digest it!"

Cheng bit the gold is rare, let go of his hands, and gently patted Cheng Chumo's shoulder.

"Dad, look at this."

Cheng Chumo solemnly pulled out a piece of paper from his sleeve.

"What's this?"

"Raw materials for glass production."

"Ugly cow, hurry up and enter the palace with Lao Tzu."

Cheng Yanjin held the paper tightly in his hand.

This is a secret technique that can't be exchanged for gold and silver!

Lao Cheng naturally knows how important these raw materials will be in the future.

"Your Majesty, the father and son of Su Guo ask to see you."

In the Ganlu Palace, after lunch, Li Shimin took advantage of the warm weather and wanted to take a nap.

"Oh, let them father and son, go to the imperial study and wait for me."

Li Shimin got down from the bed, tidied up the dragon robe, and strode towards the imperial study.

Recently, it must be a good thing for Cheng to bite the gold.

This made Li Shimin very happy to see him.

What's more, in the performance of the Xiande Hall this morning, Cheng Yanjin contributed a lot, and his performance was very satisfactory to Li Shimin.

"Minister, bring the dog, see Your Majesty!"

Li Shimin walked into the imperial study.

Cheng Yanjin and his son hurriedly saluted and greeted.

"Know the festival, be silent, and sit down without courtesy."

Li Shimin smiled and waved his hand to let Cheng Yanjin and his son sit down.

"Your Majesty, our chance to make a fortune has come again."

"Oh, again? Listening to Jun Xian's report today, isn't the tea selling very well. ”

"Do you want to open a new shop again?"

Li Shimin's words were full of joy.

The money I have earned recently is all relatives of the emperor, high-ranking officials and nobles, and the five surnames and seven wealthy families.

There is nothing more than making their money to make Li Shimin happy.

Because in the entire Chang'an City, only they are the richest.

"Your Majesty, how much gold and silver treasure did you spend on that glass cup?"

When Li Shimin heard this, he said with displeasure.

"Zhijie, I don't need to worry about how much gold and silver treasure I spend."

"If you come this time just to inquire about this matter, or if you want to fight the idea of the glass cup, I advise you to go back to the house quickly!"

Li Shimin's words have already made it very clear that this is to rush to bite the gold and get out of the way!

"Your Majesty, don't be angry, I don't mean anything else, I just ate the bear's heart and leopard gall, and I don't dare to hit His Majesty's idea of the glass cup."

"Just now Chu Mo came back from the manor, because there was a Persian merchant who was going to exchange the glass cup for the tea from the shop, so Chu Mo went to ask His Royal Highness the eldest son of the emperor."

Listening to Cheng Biting Jin's words, Li Shimin instantly came to his senses.

"Okay, it's a good thing, if there is another glass cup, I will have enough for a pair."

"Gen'er, how many tea leaves are you going to exchange for?"

Li Shimin leaned forward slightly, smiling and looking at Cheng Chumo, since he was asked by Chumo, he naturally knew the final answer.

"Your Majesty, Your Highness said that the Persian merchant wants to eat fart!"

Cheng Chumo's words made Cheng bite Jin Bengbu.

Covering his big mouth and eating, he laughed.

Li Shimin wanted to scold a few words, but suddenly thought about it, according to Gen'er's temperament, he would never casually burst into foul language.

Could it be?

Suddenly, Li Shimin's eyes burst into light.

"Chu Mo, do you know how to make glass?"

"Your Majesty."

"Your Majesty Shengming!"

Cheng bites Jin and his son, this is completely convinced.

No wonder people can ascend to the throne.

With this IQ, they are a little bit better than their father and son.

Call!

When Li Shimin was sure that he had guessed correctly, his heart was still pounding!

"Chu Mo, can you bring that glass-making technique?"

Li Shimin naturally wanted to take this kind of secret technique into his own hands for the first time.

"Your Majesty, Chu Mo brought His Highness's handwritten letter, which is all the raw materials needed to make glass."

Cheng Yanjin handed the paper to Li Shimin.

Li Shimin regarded it as a treasure and carefully spread it out.

Li Shimin originally thought that such a secret technique must require a lot of materials, but there were only ten words on this piece of paper.

Quartz sand!

Limestone!

Feldspar!

Soda ash!

Li Shimin's brows were twisted into a Sichuan shape.

These ten words contain four kinds of raw materials.

However, Li Shimin only knew and knew limestone.

Li Shimin didn't know anything about the other three raw materials.

"Someone is coming, and immediately send an edict to the three of them, Du Xiang and the eldest grandson Wuji."

Li Delu, the chief attendant of the inner chamberlain, respectfully accepted the order and left.

Li Shimin copied a new copy of the three raw materials he didn't know, and handed them directly to Cheng Yanjin.

"Zhijie, if you go to the Ministry of Industry, you will say that it is my command, ask the Ministry of Industry, but someone knows these three raw materials."

Cheng Yanjin strode out of the imperial study.

Soon, Fang Xiang, Du Xiang and the eldest grandson Wuji, the three of them came together.

Seeing Cheng Chumo and His Majesty sitting opposite each other, the three of them were quite surprised.

Li Shimin handed the paper to Fang Xiang, Du Xiang and the eldest grandson Wuji to watch.

The three of them also knew nothing about the other three raw materials except limestone.

"Xuan Ling, Keming, auxiliary machines, it would be a pity if we didn't know these raw materials."

"Together, these four ingredients are the recipe for making glass!"

Call!

Call!

Call!

Fang Xuanling, Du Ruhui and the eldest grandson Wuji all gasped excitedly.

Raw materials for making glass.

This news is simply shocking.

Prime Minister Fang Xuanling finally knew why Cheng Chumo sat opposite His Majesty.

In order to confirm the guess in his heart, Fang Xuanling spoke.

"Your Majesty, could it be that this is from the hand of the emperor's eldest son?"

Li Shimin nodded solemnly when he heard this, and said.

"It's really from the hands of Gen'er, but if you can't find the raw materials, I can't do anything!"

"Could it be that these three raw materials are only available in Persia?"

Li Shimin was anxious, Fang Xuanling, Du Ruhui and eldest grandson Wuji were also anxious.

Outside the imperial study, there was the sound of footsteps knocking and knocking.

There is only a big guy like Cheng Biting Jin, who walks like an earthquake.

"Your Majesty, there are people in the Ministry of Industry who know these raw materials, and some people know these raw materials!"

"I have already sent His Majesty's message, and each of these three raw materials will prepare at least one carriage."

Cheng Yanjin said excitedly and loudly.

"Okay, that's great."

Li Shimin instantly became happy!

"Congratulations to Your Majesty, congratulations to Your Majesty!"

Fang Xiang, Du Xiang and the eldest grandson Wuji, Cheng Biting Jin, all congratulated.

"Ladies and gentlemen, when the raw materials are ready, once the roots make the glass, I will first reward each of you Aiqing with a pair of glass cups."

"Thank you, Your Majesty, for your grace!"