It was a very good thing for Liang to know a friend of the gods, for example, after that visit, the two of them were able to exchange some questions about the practice and learn from each other.

For example, when he practiced the "Qinglian Sword Technique" before, he found that he couldn't make the sword resonate with him, and after asking Huang Yong, he realized that if he wanted to really practice this sword technique, he had to use the sword that matched the sword technique.

"Looks like I'm going to have to go back to modern again."

After inspecting the refining method, he realized that he had to go to the modern era next, otherwise it would be difficult to get enough raw materials to make this sword.

According to Chinese tradition, the ancient Chinese sword was divided into literary and martial arts. The sword was used as a common instrument for decorating the sword or the sword dance of the literati. Generally, the length is 80-90 cm, and the weight is about 500 grams.

As for the martial sword as a weapon of actual combat, it is longer and heavier, basically about 1m in length, and the weight can even be as high as 1kg.

According to the records in the sword formula, the sword required for the Qinglian sword technique is converted to the current weights and measures with a length of 96cm and a weight of 650g, which should be a strengthened version of the literati sword in terms of weight and shape.

However, it is not easy to make this sword, because the most basic material for making the sword embryo is steel, and the raw materials that need to be prepared need to be at least one out of a hundred. And the highest needs to choose one out of 10,000.

This means that he has to prepare at least 65 kilograms of steel, and at most 6.5 tons.

If you can't make it up, you can prepare 65kg of iron to complete the most basic preparations, but if you want the quality of the sword embryo to be good, then the weight of the raw material and the proportion of steel in it will increase.

Maybe for modern people, whether it is 65kg of iron or 6.5 tons of steel, it is really not a big number, and even many times if you want to buy this weight of steel and want to get a wholesale price, you have to discuss it with the merchant for half a day.

But considering that the total steel output in the entire Chinese territory in the early years of the Ming Dynasty was more than 10,000 tons, and only 45,000 tons in the heyday, it will definitely not be easy for ordinary people to get a few tons of steel in this situation.

In particular, steel was a standard tube product in ancient times, and no one may care if you buy a few kilograms, but it is difficult to say if you buy tens or hundreds of kilograms.

You must know that the spear head of the spear commonly used in this era may only weigh forty or fifty grams, and if you get a ton, you can even arm 20,000 people, and 100% will be thought to be preparing for a rebellion.

In addition to steel, the Qinglian Sword that matches the Qinglian Sword Technique also requires bronze, silver, and other metals, although the amount of these metals is not as good as steel, but the combined amount is not a small number.

This is why Liang chose to buy goods from the modern world, where the vast majority of metals and metal products in the industrialized modern world are far cheaper than those of the ancient world.

The most important thing is that no one cares about purchasing this amount of metal in modern times, and he can procure the raw materials he needs without alarming anyone.

Considering that it may cost a lot of money in the modern world in the future, Liang En made a special trip to Duobao Zhai in the city before setting off to see what things could be sold in the modern world.

As the only store in the city that sells all kinds of luxury goods, Duobao Zhai naturally has a lot of good things in it. Although these good things cannot be compared with the good things in nearby Gusu and Liangxi, there are not a few high-quality products.

It's just that because there have always been things to be busy before, Liang En has never entered this shop before.

Crossing the threshold, Liang En found that there were many Bogu shelves in the store, and the Bogu shelves were placed with various antique treasures in different categories, but after a brief scan of the whole, he found that most of them were not suitable for his own procurement for time and space trade.

For example, this is the case with all kinds of antiques, because this world has always had transcendence, so there are small differences between many things in the two worlds compared to the modern world.

Considering that these antiques, if they are sold, they can only be sold as if they are not inherited, so even the slightest difference between the two worlds similar to antiques will be considered the characteristics of fakes and cannot be sold.

Things like tiger skins, rhino horns, and ivory are not suitable for time and space trade, although the price of these things is not low, but for Liang En, an ordinary person, as long as he dares to make a move, there is a high probability that he will be in prison.

In this way, there are not many things for Liang En to choose from, and there are a number of things that can be sold in modern society that cannot make money.

For example, this is true of spices such as gemstones, precious metals, or fragrant wood and ambergris, and a simple conversion will show that their prices are not much different from those of modern society.

It is true that in ancient times there were more of these natural resources, but the problem was that it was much more difficult for ancient people to obtain these things than in modern times, and when the two were canceled out, it became unprofitable to resell them in both worlds.

"Childe, what do you want?"

After seeing that Liang En had not moved in his store for several minutes, the boss standing behind the counter first made a gesture, and then asked.

"Oh, I'm just going to take a look and see if there's anything new. Of course, the price should not be too expensive, not more than 35 taels of silver. ”

Liang returned the favor to his boss, and then said the words he had prepared before.

"Uh-I do." After quietly listening to Liang En's request, the boss thought for a few seconds, then took out a box from under the counter and opened it to Liang En.

"The contents of the box were brought by a caravan from southern Yunnan, and my jeweller tried to make a pair of bracelets out of these newly discovered stones, but unfortunately the previous guests were reluctant to buy them because they had never seen this raw material—"

"These ...... How much do these beautiful stone bracelets cost? After lowering his head and taking a deep breath, Liang En asked in as flat a tone as possible.

Because the moment the box was opened, he found that the box contained a pair of emerald green and translucent jade bracelets.

As an ordinary person, Liang En couldn't accurately divide the pair of bracelets in front of him, but he could see from the almost full green color and translucent texture that this was definitely a fine jade bracelet.

Realizing what this bracelet was naturally caused some fluctuations in his spirit, but fortunately, after practicing, his ability to regulate his spirit became much stronger, so he didn't let the boss on the other side find any clues.

"Twenty-five taels - no, twenty-three taels of silver is enough."

Looking at the bracelet and thinking for a few seconds, the boss offered a price.

"I'll tell you, Childe. At that time, the caravan just thought that the stone was crystal clear, and thought that it might be a good thing, but they didn't expect this thing to be so hard that the masters could only make a plain bracelet.

"After the result is done, our Great Song people don't recognize this, and no one wants to buy it at all. So now I don't expect this thing to sell for a high price, as long as you can pay me for my wages and the cost of the journey. I will never buy this thing again. ”

"Well, 23 taels of silver is 23 taels of silver, who makes me like this kind of thing I haven't seen before. Seriously, if I hadn't had this hobby, I would never have bought something like this. ”

After taking the pair of jade bracelets, Liang En went to the pawnshop again, but unfortunately this time there was nothing in the pawnshop worthy of his help, so he could only go out of the city with the box containing the bracelets, and then found a place where no one was there and returned to modern times.