When Situ Ye returned to Caiyun Street, it was only about four quarters past three in the morning. What surprised him was that Ruyun Lane near his shop was surrounded by soldiers.

"Auntie, what happened?"

Situ Ye asked a middle-aged woman who was standing on the street watching. She was holding a broom and a dustpan in her hands. It seemed that she was responsible for sweeping the streets in this area.

"Oh, what a sin! Last night, a handsome young man was murdered, raped, had his legs chopped off, and had paste stuffed into his mouth."

The middle-aged woman shook her head, a look of regret on her face. She was about to remind the man she was talking to to be careful when going out at night, but when she saw Situ Ye's burly figure and masculine look, she immediately swallowed her words back. With his ugly appearance, I'm afraid women are more afraid of him... that, that!

Situ Ye's eyebrows knitted slightly when he heard this, his eyes flickering. Could it be that what Lian Xing said about him being humiliated last night was true? But as for the claim that he had passed by and saved him, why didn't he have the slightest recollection of it?

Puzzled, Situ Ye returned to Jinghuayuan Snacks. He first went to the backyard and made himself a bowl of noodles that made him cry before he went to open the store.

At 2:15 PM, Zhou Yu, Zhang San, Li Si, Wang Wu, and Chen Liu all arrived at the shop. A large number of customers arrived right after the shop opened, and everyone was busy. Looking at the shop's booming business, Situ Ye smiled.

In Hua Qingcheng's original world, Zhuo Wenjun was selling wine for Sima Xiangru, and now in Laifeng Kingdom, there is also Situ Xuanye who is selling ice for Hua Qingcheng.

While Situ Ye and his shop assistants were busy taking care of business in the shop, in the main hall of the Hua family's old house, Zuo An got furious when he saw a piece of paper Hua Qingcheng threw to him.

"Hua Qingcheng!"

"What do you mean?"

I saw "Cement Production Method" written in the middle of the paper, and limestone, clay, iron ore powder, etc. written behind "Materials" at the bottom.

The "production method" is also detailed, including the specific mixing ratios of the various ingredients needed to make the raw material, as well as the required calcination temperature. The resulting clinker isn't the only thing left; it needs to be ground and mixed with gypsum to create cement.

"Literally."

After Hua Qingcheng made up her mind to build a new house last night, she went back to the study in the space villa this morning and copied the cement proportions and production methods from the computer. Now all she needed was someone like Zuo An who loves inventions to put it into practice.

"Hua Qingcheng!"

"Are you sure you're not joking?"

"Didn't we agree that you would provide me with those hidden weapons and things like that, and I would protect your doctor?"

"But now you're asking me to make this damn cement. Could it be that it has anything to do with my research?"

Seeing Zuo An's furious expression, Hua Qingcheng's mouth twitched slightly. This Zuo An really was a... naive guy.

“It does matter!”

"Of course it does!"

"This cement is a good thing. In general, it's very useful for building houses, roads, and water conservancy projects."

It is not only useful for construction and daily life, but also has great military applications. Hua Qingcheng looked at Zuo An who rolled his eyes at her and continued:

"To put it simply, as soon as the cement is made, I can start arranging the construction of a new house. Then I'll build you a fully equipped laboratory. Then you can do whatever research you want!"

"laboratory?"

He had no interest in building houses, roads, or water conservancy projects, but when he heard about research, Zuo An finally looked Hua Qingcheng in the eye.

Hua Qingcheng: "It's a place specially designed for you to do research."

Zuo An's eyes darkened slightly when he heard this. He thought about the note he had just seen and said, "It's not impossible to make it. If you can solve the problems of raw materials and furnace temperature, you can give it a try."

Hua Qingcheng: "That's easy, just wait a moment."

In Laifeng Country, which has no support from a modern industrial system, if one wants to raise the furnace temperature to meet the conditions for burning cement, it can only do so by using oxygen to assist combustion or by changing the fuel.

Hua Qingcheng, under the pretext of returning to her backyard room, copied the design drawings for the wooden bellows from her computer, based on Laifeng Country's current productivity. There was a skilled craftsman in Huaqiao Village who, with her skills, should have no problem making it.

"how?"

Seeing Zuo An staring at the bellows drawing she handed him for a long time without saying a word, Hua Qingcheng couldn't help but ask him.

“It’s a good thing!”

Zuo An suppressed his excitement and praised generously. If this thing could be made, he could refine many materials that he couldn't create due to insufficient temperature. He didn't expect this Hua Qingcheng to have such a talent!

"Since there's no problem, I'll take it to Aunt Qianyi's house in the village and ask her to make the bellows."

"That's not necessary."

"I'll go with you, but I'll just borrow her tools. I'll make the bellows."

Zuo An raised the corner of his lips slightly. Although he didn't know the craftsmanship of Qianyi Carpenter that Hua Qingcheng mentioned, it would certainly be more fulfilling to make such a shocking thing himself.

What surprised Hua Qingcheng was that Zuo An actually spent a whole morning making a piston-type wooden bellows.

Hua Qianyi looked at the finished product on the left bank with shining eyes.

The design of the piston and air duct of this new wooden bellows is very clever. It is effective in both forward and reverse strokes, and can also blow air continuously, which can greatly increase the wind pressure and air volume, thereby greatly enhancing the smelting process.

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