Li Yu listened to the two children's endorsements, and asked questions and took tests from time to time. Fortunately, both children were smart, answered fluently, and studied hard.

"Go home in two days and take you back to see your grandfather."

Seeing that the child was serious about studying and not slacking off, Li Yu nodded with satisfaction.

"Bring some snacks to my grandfather, uncles and aunt."

Brother Xu is talking about the Wang family.

"Okay, what snacks do you want to have? Sister will reward you for studying hard."

Li Yu pinched his brother's chubby face.

Brother Xu's mental outlook has improved greatly these days. Not only does his complexion improve, his face is rounder and fleshier, and his eyes are also lively and energetic.

Brother Xu snuggled into her arms and acted coquettishly, "I want to eat osmanthus cake, ginger candy, rice cake..."

Li Yu nodded, "Okay, what's so delicious about ginger candy?"

Mrs. Wang rolled her eyes at her, "You don't want others to eat if you don't like it. If you are picky, you are still very hungry."

Li Yu chuckled.

"Brother Yang, whatever snacks you like, sister will buy them for you."

Xu Yang smiled shyly and scratched his head, "I like to eat rice cakes, sugar cakes, and candied haws. When I was a child, my father would buy them for me when he went to the street."

They are all cheap food and things to entertain children. For children from poor families, candy is very valuable.

"Okay, buy it."

Li Yu waved his hand, feeling very happy.

Mrs. Wang and her aunt came in together.

"Where are you two from and how did you get together?"

Li Yu asked curiously.

"I have to report to you where I'm going. It's really..."

Mrs. Wang rolled her eyes at her daughter.

"That's right, why are you a housekeeper at such a young age?"

Wang Yue also raised her eyebrows proudly, raised her chin, and pulled her sister's sleeve to demonstrate to Li Yu.

Li Yu pouted, "I stopped relying on my mother when I was five years old. You are still relying on my mother at this age. Don't be ashamed."

"Don't be ashamed."

Brother Xu clapped his hands and applauded.

The whole room laughed, and the two elders laughed so happily.

Wang Yue angrily came over and pinched Brother Xu's ears, "You brat, you ate my snacks before and now you've turned your back on me. You have no conscience."

Brother Xu blinked and said in a clear voice, "Don't bully my sister, don't compete with me for my aunt."

He relies heavily on Li Yu and Wang.

"Just grab it. You are a boy and don't rely on your auntie all the time. A man must stand upright."

Wang Yue rudely grabbed the white spot.

Brother Xu stretched out his hand to compare his own height, and then compared her size with a silent mockery.

Who is older and who is younger?

"Ha ha ha ha!"

Li Yu raised her head and laughed, which made Wang laugh too. She patted her sister and said, "Let the children laugh at you."

"snort!"

Wang Yue then sat down and spoke.

"I heard that you plan to return to machine manufacturing?"

"Yes, I need to redo it. I am studying now and have little free time. There are still a lot of things I haven't done yet."

Li Yu produced the manufacturing drawings of the core mechanism. This alone was not enough, he also needed ready-made molds.

That is, the toys that Brother Xu plays, such as the carriage sold to the Du family, can also be converted into a chariot. A smaller version is made out of wood, and the tribesmen learn to compare the specific dimensions, and then they create an enlarged version of the wooden one.

The chariot is then made of fine iron based on this wooden one.

This matter is very troublesome, and Li Yu and his clan brothers need to keep an eye on the specific core.

The same goes for weapons. They can also be made into other daily necessities, such as water trucks and other civilian equipment, which are also easy to sell.

Mechanism manufacturing is not only used for fighting, but also plays a great role in daily life and civil use. For example, Caishiji saves a lot of manpower for the construction of city walls.

There is also the most famous one, the wooden ox flows into the horse, which replaces the horse to transport grain, which reduces the expenditure of human and financial resources and plays a huge role.

Both war horses and oxen need to eat food and grass. Wooden oxen and stray horses do not need it. They can run under human control. At most, a few sergeants are needed to guide the route and guard the rations.

"What are you going to do with the first shot?"

Wang Yue looked at Li Yu, full of doting and trust.

"Brother Xu, bring the wooden horse."

"Don't break it."

Brother Xu is very precious to his toys.

He took out a wooden horse and handed it to Li Yu.

There is a bucket behind the wooden horse to hold things. The toys are scaled down to the size of a child's hand.

But the horse's hoof is very strange. Li Yu broke the horse's hoof out. It has a special mortise and tenon structure. It can be folded in and opened. When opened, it becomes a wheel.

Li Yu threaded the thread on the carriage to a fixed position, then wound up the clockwork. He saw that the little wooden horse slid forward on its own, and it could turn with a slight push of his hand.

Li Yu picked up the wooden horse again and put its hooves back in place. The wooden horse began to lift its legs and walk steadily.

Wang Yue and Mr. Wang's eyes lit up instantly.

"This is the legendary wooden ox and horse. It is used to transport military rations to save manpower, material resources and horses. Yours is better than what I have seen in books."

"Yes, I have improved the way the horse's hooves walk. It can use wheels to walk on smooth roads, or it can walk with four hooves. It is suitable for walking on rougher roads. This seat allows a person to drive the carriage, and human control is more flexible."

"Dad, this is awesome. You don't need to eat food and grass. Just a few people to escort the car are enough."

"right."

"This horse's hoof is replaceable. In order to avoid the horse's hoof being damaged due to rough roads, there is a buckle to replace the horse's hoof. It can also be made of fine iron, which is not easy to be damaged, and the wooden one is cheaper."

Li Yu has brought out the tricks and essence of mechanism manufacturing, which is amazing. He has thought of all the links and possible problems.

"Does your father know you have this?"

"I know, my father didn't let me make a big one for fear of attracting attention, so I made toys for my brother to play with."

"Yu'er, can you help me with this business?"

Wang Yue learned from Wang's true heritage in business and financial management, and her business is doing very well.

Wang Yue picked up the wooden horse and looked at it in his hand, "Give me this. I'll go back and discuss it with the clan elders."

"You still help the clan with business, so forget it. If you were alone, I would ask my parents to give you a share. We are a family, and the clan you share will be brought down. Back then, you were bullying your orphans and widowed mothers."

Li Yuhu was so short-tempered that he was unwilling to help his aunt's ungrateful husband's family.

Mrs. Wang smiled and patted her gently, "Don't talk nonsense. The Wei family is not weak. There was indeed someone who was greedy and wanted to take away your uncle's property, and the family is not a family. Besides, your cousin's surname is Wei.

What can we do without the support of our tribe in the future? If something can pass, let it pass."

Li Yu raised his eyebrows and said, "What the hell, I don't have a man to back me up when I bully my aunt. Why didn't I say when I bullied my aunt that I would beg for help now? The Wei family must be in trouble so they came here to ask for help."

"Xiao Jingdouzi, let me tell you. The Wei family is also engaged in silk and other businesses. Previously, people robbed the boat and things, causing a lot of losses. I beg you, my aunt, to take care of it. I don't plan to take care of it in the future. When you come back later, I want to

To do the iron ore business, we need to use the Cao Gang, so the Wei family is very excited about this, and we have begged you, aunt, several times."

Mrs. Wang told the truth.
Chapter completed!