Everyone is an acquaintance, and they all say that this is a king's sword, so there is nothing to hide. Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo

Guan Xingquan also had doubts in his heart at this time, and said by the way: "The bronze mirror taken from Wang Deshun is black and shiny, what do you call it Black Lacquer Gu, this sword is more than 700 years earlier than that mirror, but it is still as bright as new."

I thought it was new at first, but was it because of the scabbard's protection?"

Zhang Nan will return the sword to the sheath and carefully put it back in the wooden box.

"No, because it's a puddle sword.

If it had been dug out of the soil like the bronze mirror, the sword would have basically been corroded to the point of pits.

The bronze ware that can maintain the ancient state of black lacquer in the soil is basically a copper mirror, and other utensils are extremely difficult, basically there will be patina, and there are often rotten ones. It may be that the alloy composition is different, and this copper mirror is relatively easy to preserve. ”

"Puddles, dug out of the river?"

Guan Xingquan thought at the beginning today that what he saw would be a weapon coming out of the river, and this "puddle" probably means this.

He guessed wrong.

"The water dug out of the river is called water, and the puddle is actually dug out of the soil, but the tombs that come out of the things are generally soaked in groundwater, which is similar to the Qing Dynasty tomb of Sandouqiao that Wang Deshun said. ”

Cao Qiang didn't know what was going on, Xiang Weirong and Lin Ming were cold!

"Don't think about it, don't touch the hundreds of years of puddle tombs, these two thousand years ago are completely different and harmless. ”

I knew what these two were thinking: the Warring States Tomb didn't have any corpse poison, and it had been too long, so long that all those messy things had been decomposed.

said and asked Cao Qiang: "Boss, do you have any weapons dug out of the battlefield?"

"And a couple of arrows. ”

It was still quite close, on a wooden shelf in the living room on the first floor.

Cao Qiang took it easily, a total of three.

"Most of the things dug up in the river are full of potholes, and these arrows are still used by the workers as toys for my son.

A few years ago, when I was just in the yellow sand business, the sand dredging boat dug out a bronze sword from the bottom of a deep sand pit, and I remember that it was still a little shiny, and then a Cixi man took it.

I don't have half the time at home, and these people usually sell things when they pick them up, and they didn't bother to care about it before.

But I've already greeted them, and if you have one in the future, you'll have to take me first, and I'll keep it for you. ”

Zhang Nan didn't ask how to take it, so he couldn't do it.

The three arrowheads, long and short, are obviously not of the same variety, but they do not show much distinctiveness: they may not even be of the same era, and there may be a difference of hundreds of years before and after.

But there is one thing in common: the surfaces are potholed and corroded.

Zhang Nan held the arrow in his hand and said: "This is a typical copper vessel out of the water, if it is not buried deep enough, it will become like this if it rubs too much with the sand and stones at the bottom of the river."

Moreover, the river water is also acidic and alkaline, and it will corrode if it is too long, unless it is buried deep in the water for a few years or decades after falling into the water.

It's like the sword dug out of the deep sand pit that the boss just said, because the environment there is a bit like a groundwater immersion environment, the nature of the water will be close to neutral, the oxygen content is almost zero, and there is no friction. ”

He put the arrow on the coffee table casually and pointed to the king's sword: "Copper is generally not easy to rust under daily conditions, which is one of the reasons why this king of Yue aims not to rust the sword."

However, this is only the most basic reason, and the most important thing should be that it is isolated from the air and protected by water.

More than 2,000 years ago, puddle tombs are very rare in our southern part of the Yangtze River, but such tombs can often be found in Hubei Province.

It's hard to say what kind of tomb this sword dug up from, but you can compare it with the environment in which his Laozi Yue King Goujian dug it out with his sword.

It's definitely a puddle tomb, otherwise this scabbard wouldn't want to be preserved.

When the Goujian sword was unearthed, it was inserted into the lacquered wooden scabbard like this sword, and the tomb was several meters above the surface, with two coffins and two coffins, layered together.

The coffin is surrounded by a kind of fine white clay, which is called green plaster mud in the archaeological circles, and the lower part of the coffin is still made of green plaster mud that has been washed manually, and the density is excellent!"

Zhang Nan was talking energetically, but he saw his brother-in-law smiling there.

"What's wrong, brother-in-law?"

Xiang Weirong said with a smile: "Anan, you are from Yan County. ”

In less than a second, Zhang Nan reacted to why!

"Something to do!"

Green plaster mud, that is the elegant name, and there are also kaolin clay, Guanyin clay, that is, the kind of soil that burns porcelain.

And in Yan County, this kind of soil is called white dyed mud: if there is this kind of soil on the surface, let alone grain, even grass will not grow a few roots for you!

Zhang Nan's hometown of Chongren Town has terrifying reserves of extremely terrifying white dyed mud, which is said to be of excellent quality, and is world-class in both reserves and quality: it has now begun to be used to produce industrial refractory rotors.

This reminded Zhang Nan of a joke in later generations: the boiler of the aircraft carrier that Russia sold to Ah San had a problem on the first sea trial, and it turned out that the newly pasted refractory turn in the boiler fell off!

Ah San was so angry that he scolded the bricks for being of poor quality, and later found out that Lao Maozi could not make high-quality military refractory bricks at this time, and the bricks were imported from China!

As a result, the relevant departments of Huaxia replied: We have not exported a single military-grade refractory rotor for the use of warship boilers for decades!

I'll export my bricks and use them on your warship?

I really don't know if it's because you have a problem with Ah San's IQ, or if there is a problem with Ah San's IQ!

In the end, the investigation found that there was no problem with the quality of those refractory bricks, and they were the best quality refractory bricks used in the world's land-based stationary large-scale civil boilers!

Note: The place of origin is said to be Jiangnan County.

The original list of Maozi imports reads: civil refractory bricks.

It's not the same product at all!

It's no wonder that you stuff the top-of-the-line civilian fire-resistant refractory boilers used on land into a bumpy warship!

Ah San was pit by Maozi again!

Yan County is famous for its white dyed mud, fortunately, most of the white dyed mud deposits in my hometown are below the surface, and the top is generally covered with a layer of other soil ranging from two or three meters to more than ten meters, and only a few places have a white dyed mud layer outcropping on the surface.

Fortunately, this is the case, otherwise my hometown in the land of fish and rice in the south of the Yangtze River would have been poor in the past!

As a native of Yanxian County, he is still explaining the white mud, no wonder his brother-in-law laughs at himself.