"How's it going?"

Behind the craftsmen, Mang Gurtai's voice rang out.

Several craftsmen who stirred the mud, whether Manchu or Han, heard this sound, hurriedly put down their tools, and knelt in front of Mang Gurtai with brushes.

Rather than kneeling, it is better to say "lying down", which is the purest form of "grabbing the ground with his head", showing the slave's fear of the master's authority.

Among the craftsmen, one who wears a dogskin hat to protect himself from the cold is the head craftsman.

As he crawled, he dropped his hat, revealing his bare head and his rat-tail-like braids.

The hat rolled and landed in front of Mang Gurtai's boots.

Mang Gultai kicked his hat back to the craftsman's head, "Get up and talk."

Sanbeile, who bared a mouthful of buckteeth but thought he was handsome and extraordinary, personally reached out and helped Mu Zaohua, who was bending his knees and squatting with Wan Fuli.

"Didn't I say that you don't have to salute like this when you see me, and I'm not a Great Khan, let alone the second and eighth of them."

In his own yard, in front of his own slave craftsmen, Mang Gurtai did not shy away from his intimate actions and gentle words to Mu Zaohua.

On the way back from Mongolia in the winter moon last year, Mu Zaohua was already able to endure the imminent exhalation of heat from Mang Gurtai and the stroking of her wrists with her willpower.

At this moment, while standing up straight, she said in a tone of disgust in the middle of the board, "Sanbel, it's important to get down to business."

Mang Gurtai let go of the woman's shoulders and paced to the middle of the courtyard filled with various mud patterns.

"Mr. Ji, you can talk to Sanbeile." Mu Zaohua said to the craftsman wearing a dogskin hat.

"Sir?" Mang Gurtai looked at Mu Zaohua and said with a smile, "It's just a coat, you call him sir? Zaohua, we Dajin, only the pen posts in the yamen are the gentlemen in the Chinese dialect."

Mu Zaohua said calmly: "Sanbeile, I asked, his father was originally a showman, and he also knew how to write and hyphenation. On the contrary, I can't even write 180 Chinese characters, so why can't I call him sir?"

"Okay, what do you like to shout," Mang Gurtai pouted disapprovingly, "Ji slave, the master of the jujube flower values you so much, you have to do a good job."

The craftsman named Ji Xiaoxian hurriedly stepped forward, bowed down and said to Mang Gurtai: "Master Mu has given good guidance to the minions, and the minions are just freezing the wax in the cold these days."

Under the explanation of Ji Jiangtou, Mang Gurtai quickly understood a rough idea.

Mu Zaohua asked the craftsmen to try to make a cannon pipe first, rub a small cylinder with mud first, pour wax on the outside, wait for the wax to solidify, paste a layer of mud outside the wax layer, and then put it in the open air to freeze it, you can use the method of fire roasting to melt the wax layer, and pour molten iron into the mud fan obtained.

"Hehe, I know that a crony like you who has been by that wicked woman's side must know how to make cannons better than Yue Zhi's stupid goose."

Mu Zaohua didn't look smug: "Don't be in a hurry to praise me first, this is just making a clay model, and the craftsmen of Sibeile and Master Yue should also understand." What worries me now is that even if the cannon barrel is cast, it will be like the three-eyed gun of the Ming Kingdom at that time, and it will explode at every turn."

"Why?" Mang Gurtai wiped his smile and asked.

Mu Zaohua glanced at Ji Jiangtou again, and the latter understood that this kind-hearted Han compatriot was constantly giving himself the opportunity to perform.

"Sanbeile," Ji Craftsman said, "The Ming firearms that our Dajin seized before were all small pipes, and this time to make such a large cannon barrel at once, not only did the clay mold have to be cast with great care, but the last thing poured into it was not ordinary molten iron, and the jujube flower master said that it had to be mixed with copper."

Mang Gultai frowned: "It's so troublesome, can't it be like the armor of the Bayalas, who only use iron?"

Mu Zaohua secretly sneered: Idiot, but you are much more stupid than that Emperor Taiji, which is a good thing.

Seeing that Ji Jiangtou showed timidity, Mu Zaohua took over the conversation and said: "You can't just use iron, the cannonballs are more than the three-eyed guns, and after the cannon is ignited, the temperature in the barrel is extremely high, if there is no copper mixed into the barrel, maybe the second shot will blow up, and our own armor will be blown up."

"Oh, so." Mang Gurtai nodded.

In fact, he still didn't fully understand, but he was very happy that Mu Zaohua was so careful, and showed that she cared for the lives of their Jianzhou warriors, which showed that this woman was wholeheartedly the people of their Dajin.

These bits and pieces must be known to the Great Khan.

"So, Jujube Flower, what can you do?" Mang Gurtai asked.

Mu Zaohua said admittedly: "Sanbeile, when I was in Songjiang in the past, I saw craftsmen matching copper and iron, I probably remember something, I can try a few recipes with Mr. Ji and them, but what is more troublesome is that Hetuara did not have a cheap woman surnamed Zheng to get Songjiang's copper."

The Jurchens both had iron ore in both Jianbu and Yehebu, but copper was indeed scarce. Mang Gurtai squinted his eyes and thought for a while, and said, "This is also easy to do, tell the caravan in Shanxi, bring copper."

Mu Zaohua said: Sure enough, what Mrs. Zheng said is right, there are many female businessmen who collaborate with the enemy in Shanxi.

At the same time, this also coincides with the intelligence of the secret pile of the palace A Xue girl who developed herself.

Mu Zaohua still shook her head at Mang Gurtai and said, "The copper in the north of the Ming Kingdom can't be used. After the artillery factory surnamed Zheng was opened, we heard that there were people in Shanxi, Hebei Province, who also followed the path of the imperial court and opened an artillery factory. The one surnamed Zheng was very proud, saying that those people didn't know that the Frankes over there in Guangzhou all bought copper from the Wa Kingdom, and the copper from the Wa Kingdom was good at casting cannons."

Mang Gurtai is no stranger to the Wa Kingdom. Decades ago, Japan fought Korea, and the Ming court sent troops to help, and at that time, he also wanted to go to Nurhachi, who was pretending to be low and small in the Ming Dynasty, but the Ming court saw that he was just going to grab things by the way, and refused.

"Wakoku, it's very close to North Korea." Mang Gurtai came up with a sentence.

Mu Zaohua became more and more undisguised in her serious demeanor: "Sanbeile, I've actually been pondering. The surname Zheng and Mao Wenlong are very familiar, and let Mao Wenlong occupy the Dongjiang River and Phi Island back then, and he is not stupid. But hasn't Kuandian by the Yalu River always been in our hands? I want to go to Kuandian, catch up with the Korean merchants, let them pick up the copper from Japan, and then walk across the Yalu River and avoid Mao Wenlong."

Mang Gurtai stared at Mu Zaohua, and after a while, he bared his buck teeth more conspicuously, and said with joy in his eyes: "Moreover, if this trade route is opened, we Dajin can also have a closer way to buy grain?"

Mu Zaohua deliberately said in a cruel tone: "The grain is something that the North Koreans can grow by themselves, so why should we buy it, just grab it." However, if the North Korean businessmen can really get us copper, then they can get more good things. For example, the ointment of the crow."