After seeing Yan Liqiang easily solve the problem of casting sand holes, Luo Yutian became more interested and took Yan Liqiang to the Jiangcheng City. He took Yan Liqiang to visit the iron smelting workshop, sword slashing workshop, armor workshop, and arrow workshop in Jiangcheng City, allowing Yan Liqiang to walk around Jiangcheng City.

It has to be said that the scale of these workshops is indeed the largest that Yan Liqiang saw. The management of these workshops is also remarkable and is considered efficient in a group of craftsmen and machinery camps in the Han Empire.

After visiting those ordinary workshops, Luo Yutian even took Yan Liqiang to several places with extremely high confidentiality levels in Jiangcheng. There were sergeants standing guard outside and checked carefully before entering. The production of several places was a group of heavy military anger prepared by Luo Yutian for the Black Mountain Army that could be towed with the vehicle. New half-body armor made with hydraulic stamping machines, and even new catapults that could smash things farther than traditional catapults...

There are countless skilled craftsmen in the craftsman city, and these things are naturally the efforts of the craftsmen in the craftsman city.

Luo Yutian originally wanted to show the strength of the Luo family by showing these things like Yan Liqiang and win some face for the Luo family and Jiangcheng. After all, the ability Yan Liqiang showed in the water and lighter manufacturing workshop today made everyone recognize his identity as a master of craftsmanship. This kind of mentality is just like those antique collectors who will take out their treasures for the master to evaluate when they see the masters of antique collections coming to visit. They can get affirmation and praise from these masters, and for these antique collectors, they will have a special sense of satisfaction and accomplishment.

Duke Xinguo was full of anticipation and wanted to see a look of shock and shock on Yan Liqiang's face, but what disappointed him was that from beginning to end, Yan Liqiang's face was not astonished as a craftsman. Those powerful tools he thought did not even make Yan Liqiang, a master craftsman, look at it. Yan Liqiang swept it from beginning to end, just like looking at the cabbage sold on the street, with a plain look. Even when facing other people's introductions, at most he only showed a polite smile on his face. If he had to evaluate, what Yan Liqiang said was simply "Good! Not bad! Not okay!" and he couldn't hear any excitement.

This made Duke Xin very frustrated, and he didn't believe that Yan Liqiang had seen anything!

After everyone was wandering around Jiangcheng, the sun was almost set, so Luo Yutian directly invited Yan Liqiang to have supper together in the back garden of the Jinzhou Supervisor's Yamen in Jiangcheng.

There were only Luo Yutian and Yan Liqiang at the dinner table, and their entourages and subordinates were all dining in the outer courtyard.

After the meal was served, Duke Xin Guohe and Yan Liqiang ate and talked about what they saw in Jiangcheng today. After almost the conversation was over, Duke Xin suddenly changed his style, "Today, you went to Jiangcheng, and it opened my eyes. Liqiang, the name of a master craftsman, is truly worthy of his name. Tiexin has always rarely convinced people, but Liqiang, you just have a few words today to make him obey him, which is really rare!"

"By the way, Brother Luo, I don't know where Lord Ou has been, why didn't he come to have a meal?"

"Hahaha, he could not bear to know the casting technique you said by Li Qiang. He must have gone to the workshop to make trouble. I have come to this Jinzhou Supervisor's Office more times than him!"

"Hahaha, it's your blessing for Brother Luo to have such a subordinate!"

"Li Qiang, you said it well. This is also the reason why I appreciate Tiexin. The so-called "no perfect person is, Tiexin may be a little inadequate in other places. He speaks and does things straightforwardly, but he is very concerned about the affairs of the craftsman city and works diligently!" Speaking of this, Luo Yutian said with a little mysterious, "I know that Li Qiang has a high vision. Today's things may be commendable in the eyes of ordinary craftsmen, but in Li Qiang, it is too ordinary. Today there was one thing I wanted to show to Li Qiang, and let Yan Li Qiang guess what it is for, but there were too many people just now, and this thing was inconvenient to display, so I didn't take it out. I'll let Li Qiang see, can you guess where this place comes from?"

After saying that, Duke Xinguo clapped his palms. A confidant beside him came to the two of them with something on a tray serving dishes, and then stepped down.

The tray was covered with a piece of red cloth. Duke Xin personally took the red cloth away, revealing a bowl below. At this moment, there was some dark brown unknown liquid, which smelled a little pungent.

Duke Xin Guo looked at Yan Liqiang with a somewhat expectant and reserved look. Originally, Duke Xin Guo thought Yan Liqiang would be confused when he saw this thing, and he didn't know what this thing was. This would make him regain some face. But what disappointed Duke Xin Guo again was that when he saw that thing, Yan Liqiang's expression was slightly stunned. Then he looked at Duke Xin with a smile, with a calm face. Duke Xin, who was originally full of confidence, couldn't help but feel guilty when he looked at Yan Liqiang's eyes.

"This... Could it be that Li Qiang, do you know where this thing comes from?"

"It turns out that Brother Luo hid the real good things in Jiangcheng. I was wondering just now. There are so many craftsmen in Jiangcheng. It would be too inappropriate if they only get the little things they saw today!" Yan Liqiang smiled slightly, and his eyes were filled with wisdom. "I'm afraid that the iron smelting and steelmaking workshops we went to see today are not the latest methods that you can do with Jiangcheng and Brother Luo?"

At this moment, it was Luo Yutian's turn to be dumbfounded. The reason why he took out this thing was in a bowl was to see if Yan Liqiang could understand where this thing came from without giving Yan Liqiang any hints. After Yan Liqiang's words, Yan Liqiang not only knew where this thing came from, but also knew the function of another thing he had not taken out with this thing. God is right. When his craftsmen discovered and made these things, they were only after exploring for a while before they found out that these things could be used for iron smelting and steelmaking.

"Li Qiang, do you really know where this thing comes from?" Luo Yutian looked at Yan Liqiang with disbelief.

"There is a lot of coal in Jinzhou. No one thought about how to squeeze oil from coal!" Yan Liqiang blinked at Luo Yutian, "This is tar. With tar, there is coke. Coke is very beneficial to iron and steel making. Brother Luo should have tried it a long time ago, but he didn't take it out. I guess he was afraid that someone would learn it. I originally wanted to tell you after I go back today and ask you to try it, but I didn't expect that someone under my command had already made it out!"

Luo Yutian was quiet for a few seconds, then sighed a long sigh, and smiled bitterly at Yan Liqiang helplessly, "The master of Tiangong is worthy of being a master of Tiangong. I am convinced. In this world, what else is there in Liqiang that you don't know?"

"Haha, I don't know a lot, but what I know is just a coincidence!" Yan Liqiang picked up the bowl of tar in front of him and took a deep breath of tar intoxication, "This is a baby..."

...

When the group returned to the Luo family mansion in Jinzhou City, it was already dark.

After separating from Luo Yutian, Yan Liqiang returned to his Mingyue Tower directly. However, before Yan Liqiang could rest for a while, Manager Luo hurried to Mingyue Tower, "Mr. Yan, Lord General, have something to invite him!"!

What's going on? I just separated, does Luo Yutian have something to do to find him?

He muttered in his heart that Yan Liqiang still followed Manager Luo to Luo Yutian's study.

Luo Yutian looked solemn and handed a piece of paper in his hand to Yan Liqiang, "I'm also back to the mansion and received the news just now. Liqiang, take a look!"
Chapter completed!