Tian Meng was busy, and Li Ke was idle, the role of iron ore was undoubted, and he did not ask Li Shimin for the standard armor of the Tang Army, of course, not because Li Ke said in a high-sounding manner, let Li Shimin take it to fight, but because of ...... Li Ke can't look down on it!

He has a perfect steelmaking technology in his hands, and of course he has to build his own equipment.

Limestone mines are related to two industries, the first is cement. Even soil cement is inseparable from limestone mines, and it just so happens that soil cement also needs to use iron ore slag for ironmaking, or simply grind iron ore into powder.

It is not comparable with the high-strength professional cement of later generations, but in this era, it is still an artifact! As for professional cement, don't think about it in a short time, because professional cement grinders, as well as temperature control, are a big problem for this era.

Originally, I was going to take my sisters to play today, but now that I have taken over the task, Li Ke will simply do a day's work first.

first said hello to Yang Anning and them, and then said to Changle and them, saying that he had something to deal with and let them have fun, and Li Ke called the guards out.

As for the destination, it was Tian Meng who had prepared for him, a large open space and a makeshift wooden house.

This place is far away from the farmland area, it is a sunny hillside, and the reason why I chose this place is naturally to test whether the photovoltaic power generation panels in my space can be used.

Let the guards be stationed on the periphery, and no one is allowed to approach, so Li Ke carried the dismantled photovoltaic panels in the warehouse that was built.

After the photovoltaic panels were taken out, Li Ke conducted a careful inspection and found no problems, but now they can't be tested.

Li Ke first moved out of two UPS uninterruptible power supplies, when he moved out, as soon as he turned on the machine a little, he understood, broken! There's already something burned inside, and I don't know where it's damaged.

He didn't disassemble it, but directly put it in Zhuangzi's warehouse, waiting for it to be repaired later, to see if he could replace some parts, and in the end, if it really didn't work, he found an opportunity to throw it into the iron-making furnace and burn it.

Li Ke moved out all the uninterruptible power supplies, and soon, Li Ke was pleasantly surprised to find that there were two sets of uninterruptible power supplies that were good and could be used.

Seeing these two sets of power supplies, Li Ke had some guesses.

Because these two sets of uninterruptible power supplies are not disassembled, but two sets of logistics backup.

In other words, when you cross by yourself, all the running equipment is damaged, but the equipment that is not running is still intact.

In order to verify his idea, Li Ke quickly found other equipment to start testing.

Sure enough, several laptops that Li Ke found from the office that should be in use were all broken after they were taken out.

However, he didn't know who turned out of the cabinet to press the bottom of the box, but the old notebook could be successfully turned on, but the battery was insufficient, and the power was only 2% when it was turned on.

It doesn't matter! As long as it works.

At least some high-end products can be tried out by themselves, but unfortunately, just one or two high-tech products are of little use in this era. And Li Ke didn't dare to take it out and share it with anyone.

The next step is to assemble, Li Ke first moved out these photovoltaic panels, and then called the guards over and asked them to start helping to place these photovoltaic panels.

Although the guards were surprised by these photovoltaic panels, they were not too curious, because in their opinion, this seemed to be a combination of glass and iron plates with strange shapes.

I don't know what it's used for, though.

They don't understand what's inside.

The photovoltaic panels were soon placed in a large area, a total of 20 kilowatts of photovoltaic panels are actually not much of a large area, Li Ke according to their original appearance, all the cables are connected, and then connected to the backup inverter and other equipment, and finally the power input to the UPS uninterruptible power supply.

Because the UPS uninterruptible power supply itself has a built-in battery, it can be charged first.

After doing this, Li Ke clicked to start, and when the flashing indicator light on the UPS lit up, Li Ke couldn't help but let out a cheer in a low voice, beautiful!

This means that some important electrical appliances can be used by him, and these appliances can give him some advantages that others can't imagine in this era!

"Huo Gang." Li Ke walked outside and said in a deep voice.

"Your Highness!" A guard dressed in bright light armor walked directly over and saluted.

He was Li Ke's guard commander, and he was also the first group of people to be "brainwashed" by Li Ke himself, and Huo Gang was still very young at that time.

"Send a thousand guards to surround all around this area, and strictly prohibit anyone from stepping in, trespassing, behead!" Li Ke said in a deep voice, in this era, mercy alone is not enough.

"No!" Huo Gang was stunned for a moment, Li Ke had never given a similar order, which was enough to show that the things here were very important.

Handing over the guard work to Huo Gang, Li Ke returned to the house, and when he came back, it was already evening, don't look at this matter as simple as it is said, just arranging and sorting out these photovoltaic panels took Li Ke a lot of time.

This is also because time in space is static.

"Three pots, three pots, have you eaten, I haven't seen you for a day." When Li Ke came back, Jinyang, the little padded jacket, ran over and asked.

"The third brother has already eaten, how are you eating? Is it tasty? Li Ke smiled and touched Jin Yang's little head.

"Good times! The rice here is the best I've ever had! Jin Yang nodded violently, obviously Changle and the others didn't know how, but Xiao Jinyang's stomach was still conquered.

"Third brother, are you busy here? If you're busy, I'll take them back tomorrow. Changle also walked over and asked.

"What are you going back for? Don't you still have nothing to do in the palace when you go back, just play with me, and my father has set a time for you to go back? Li Ke said.

"Not really." Changle shook his head slightly.

"No, I'm just waiting here, I just have good things for you to play with these days." Li Ke said directly, he really prepared a lot of things, and now, it just so happens that his sister propaganda ambassadors are here, you can let them try it first, as long as they approve it, then you can have one more money-making product in Datang.

"Okay." Changle thought about it, and it was true that there was nothing to do when he returned to the palace, mainly because he was afraid of staying here to delay Li Ke's business, since Li Ke was fine, he would stay.

But tomorrow Li Ke doesn't have time to care about them, just let them play by themselves.

The next day, Li Ke got up directly in the morning, and made an appointment with him when Li Jing left yesterday, and all the soldiers gathered at the construction site by the Wei River, according to Li Jing's speed, it is estimated that by the time Li Ke passed, the army had arrived.