Li Shimin was speechless.

But suddenly I thought of Niu Jianhu and asked in surprise, "by the way, speaking of Xiaohu, why haven't I seen Xiaohu for a long time?"

Several people also looked confused.

I haven't seen Niu Jianhu since I last saw him. I just heard that he seems to be cultivating at home, and it seems that his legs can basically walk down for two steps.

But no one knows the details.

Zhang Feng also said curiously, "don't talk about the Mavericks. The old cow doesn't know where to go this time. There is no human shadow."

"He went to Kucha city. Last time, he delivered a batch of strong crossbows. After all, the border war has changed, so we must take action. Moreover, we contracted the manufacture of these weapons, and old Niu is very familiar with the road in Kucha, so I asked him to arrange it in person."

Li Shimin took the opportunity to say.

This is what he wanted to ask for a long time.

Now the internal worries have been dealt with, but foreign aggression still exists, and I heard that the Kucha side seems to have reached the point of having to fight. Turks and Tianzhu have gathered more than 300000 troops and have been stationed under the Kucha City, and the armaments here are being madly manufactured.

Although the mountain has handed over all the smelting of refined steel to the foot of the mountain, and the work department at the foot of the mountain has convened at least thousands of people day and night, even so, it can only support the production of 500 strong crossbows every day.

And this is still in accordance with the set of rules formulated by Zhang Feng before.

Although these people have been working very hard, the arms iteration of 100000 troops is still a drop in the bucket. In addition, it is a long way from Kucha city. It only takes five days to transport these materials, and they still don't sleep for five days. When they arrive at a state capital, they immediately send local soldiers to take over, and then escort them to the next state capital, The previous carrier returns again, and so on.

But even so, it was not broken every day. In these short days, it produced more than 5000 powerful crossbows and 30000 spears that can be used by soldiers.

This is really a drop in the bucket compared to the more than 300000 enemy troops.

At the thought of this, Li Shimin couldn't help asking, "Fengzi, you said last time, can you make this gunpowder and that cannon?"

This is what Li Shimin thought of when Zhang Feng asked Niu Jianhu just now, and it is also the question he wants to ask most.

Although he didn't see artillery, from Zhang Feng's description, he vaguely felt that this thing seemed to be the key to the victory or defeat of a big war.

So at this time, Li Shimin asked.

In fact, he wanted to ask about it for a long time, but because there are too many Yao moths higher than the central court and the Tang family, he didn't worry too much when he learned that the people of the military and work department are making 500 strong crossbows every day.

Although 500 a day.

It's only five thousand in ten days

This number is a little small, but it's better than none!

When Zhang Feng heard the speech, he patted his forehead and said, "if you don't tell me, I really forgot all about the cannon. It's not urgent. This thing is actually easy to do. When I do this water tanker..."

"Don't introduce!"

Li Shimin was shocked at the speech and hurriedly said, "you don't know that the war on the border is imminent. If there are few things to frighten, Kucha city will be defeated in ten days!"

"We haven't won a big battle in Datang for a long time. We have to win this time. So, Fengzi, do you think we can..."

Seeing Li Shimin like this, Zhang Feng was speechless.

But he still said, "well... I'll try?"

"I'll say yes first. I can only say if I have time, but I'm sure I can give you an answer in less than three days. However, let someone send me 20 carts of iron ore first, otherwise I can't get the cannon."

Hearing the speech, Li Shimin immediately rushed out the door and shouted, "your son!"

"Go quickly and ask someone to send 20 cars of iron ore to the mountain. No, 200 cars. They must be sent tonight!"

After that, Li Shimin asked, "is 200 cars enough?"

Zhang Feng was speechless.

"Maybe it's enough material for ten cannons."

When Li Shimin heard the speech, his eyes stared as big as copper coins.

Two hundred carts of iron ore can produce almost ten cannons?????

Is this eating iron?

Li Shimin was speechless, but asked expectantly, "this thing can..."

Zhang Feng thought about it for a long time. He didn't hear Li Shimin's words at all. He said, "I thought that if these ten cannons came out, they would be enough to retreat the enemy! Moreover, if I were improving, almost no matter how many people came from other families, our ten cannons and 30 bed crossbows would be enough."