The largest weapons production base in Wu is the "Great Workshop" located at the eastern foot of Zijin Mountain.

This workshop specially created siege equipment such as ladders, trebuchets, and battering rams, as well as weapons such as swords, halberds, spears, shields, and ge, as well as a series of war tools such as chariots and armor.

Of course, in addition to the large workshops, there are also some workshops in various parts of the Wu Kingdom, which specialize in providing different weapons and equipment.

There are also some blacksmith shops in the people who can make weapons, but it is one thing to carry them with them, and it is one thing to use them for hunting.

Even the blacksmith who made the weapon for the murderer was punished!

At this time, Qing Ji, accompanied by the cadres of the Great Gong Order, and a group of guards, inspected the Purple Mountain Workshop.

The strong national power allowed Wu to create the best weapons in the world at that time.

The weapons made by the Wu people are manufactured in accordance with standardization, and the error is so small that it is unimaginable!

"Glue slippery, take the widow's vernier caliper and tape measure."

"No."

With Qingji's order, the CRRC Fuling, who was following on the side, took out two very novel things.

One is a vernier caliper made of bronze, and the other is a tape measure made of extremely tough tarpaulin......

It's very simple!

However, it is extremely practical!

The weapons of the Wu Kingdom are quite exquisitely made, and there are three ridges more than 90 centimeters long on the bronze sword, which divides the slender sword body into eight sides, and it is very difficult to complete such surface processing by hand.

Ge's arc part is neatly machined, and the three streamlined surfaces on the arrow are perfectly symmetrical.

It's not easy to meet such a standard!

Qing Ji took his tape measure and vernier caliper, and measured a variety of weapons in a row, including swords, ge, spears, arrow clusters and other things, all of which were measured one by one, and found that these weapons all had certain standards.

"Cadre."

"The minister is here!"

The cadre hurriedly stood up.

"This vernier caliper and tape measure are both measuring tools, and if you produce anything in the future, you can use this as a degree."

Degree, the name of a unit of length, originated very early, and in ancient times, it was named after a certain part of the human body or a certain action.

For example, inch, size, zhang, xun, chang, and so on.

In these names, the ruler is the basic unit of length.

The length of a foot is similar to the length of a hand, and it is easy to identify, so in ancient times, it was said that the ruler knew the ruler and the ruler knew it.

The measuring tools used by craftsmen to create weapons are also very primitive, basically using a standard, but the gap is a little large.

"No."

The cadre agreed, but when he took the tape measure and vernier caliper in Qingji's hand, he was suddenly puzzled.

What does the font size on this ruler mean?

For Arabic numerals, it is naturally impossible to recognize the cadre.

However, Qingji has been prepared.

"Glue slippery, you teach Dagongling how to use this tape measure and vernier caliper."

"Yui."

After getting the glue slip instructed by Qingji, he immediately explained these two new measuring tools to the cadre.

Tape measure aside, the focus is on vernier calipers.

Vernier caliper is a measuring tool for measuring length, inner and outer diameter, and depth.

The vernier caliper consists of two parts: the main ruler and the vernier attached to the main ruler that can slide.

The main ruler is generally measured in millimeters, and there are 10, 20 or 50 grids on the vernier, according to the different grids, vernier calipers can be divided into ten-degree vernier calipers, twenty-degree vernier calipers, fifty-degree vernier calipers, etc.

The vernier is 9mm for 10 indexing, 19mm for 20 indexing, and 49mm for 50 indexing.

There are two sets of movable measuring claws on the main ruler and vernier of the vernier caliper, which are the inner measuring claw and the outer measuring claw.

The inner measuring jaw is usually used to measure the inner diameter, and the outer measuring jaw is usually used to measure the length and outer diameter.

For a while, the cadre heard it in a fog, and it took a while to come back to his senses.

The important thing is to be familiar with Arabic numerals, so that you can remember how to use vernier calipers!

And there is some gap between this kind of bronze vernier caliper and the vernier caliper used by modern people.

As we all know, the vernier calipers used by modern people use the principles of calculus.

When measuring, you need to align the scale of the main ruler with the compound ruler, and then understand the size of the thing according to the scale of the compound ruler, and the accuracy is still relatively accurate.

But the bronze calipers are relatively poor!

When using it to measure an object, the length of the object can only be visually measured by the indicator line, so that the accuracy is greatly reduced and much smaller than the vernier caliper.

However, it is this kind of bronze vernier caliper, but it is already a very advanced epoch-making black technology!

At least before Wang Mang invented this vernier caliper, Qingji's vernier caliper was ahead of more than 500 years.

Later, Qingji is ready to promote addition, subtraction, multiplication and division, along with Arabic numerals, leading the trend of the times!

"Not bad......"

Qingji held a bronze sword about 90 centimeters long in his hand and nodded with satisfaction.

I saw that this bronze sword has a dense structure, the sword body is bright and smooth, the blade is delicate, and the texture comes and goes without staggering.

Not only is it long, but it's also sharp!

Looking back on the development process of the Huaxia bronze sword, the sword body has been continuously lengthened.

When it first appeared, the sword was only twenty or thirty centimeters long.

By the time of the Spring and Autumn Period and the Warring States Period, the length generally reached about 50~60 cm.

In the late Warring States period, some swords exceeded 70 centimeters, and the longest was 75 or 76 centimeters.

In the Qin Dynasty, the length of the Qin sword in Guanzhong reached a new level, exceeding 80 centimeters, and the longest one was nearly 95 centimeters!

At Qingji's request, the swordsmiths such as the cadres racked their brains to think about how to increase the length of the bronze sword without affecting its quality.

You know, an inch is long and an inch is strong!

In the bronze sword in technical combat, the primary function is to assassinate the enemy and penetrate the opponent's armor, and the slashing and slashing are only auxiliary functions and are secondary.

Wu Jian, which is nearly 30 centimeters longer than his opponent's sword, is obviously easier to stab his opponent in combat.

This is the main reason why Qingji must make Wu Jian longer!

However, this is a bronze sword after all, what method do swordsmiths such as cadres use to make the long sword not easy to break?

"King, this is a sword built by the Central Plains countries such as Song, Wei, and Lu, and the king may be able to give it a try."

Knowing that Qingji was coming to inspect, the cadre had already prepared, and immediately took a bronze sword about 60 centimeters long from the craftsman on the side.

Qingji bowed slightly, casually let the cadre hold the sword, and slashed at the sword in his hand.

"Bell!"

After a crisp sound, I saw that the Wu Sword in Qingji's hand was not damaged at all.

On the other hand, the bronze sword held by the cadre, as the attacking side, has a gap in the blade!

"Color!"

When everyone present saw this, they all applauded.

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