The original purpose was just to make butt polishing paper, and as soon as the developed Tiangong Adhesive Paper丨Pu was born, it caused a sensation in the circle of the scholars in the Great Wilderness World.

Added 丨 wood gum hemp vine 丨 juice made of 丨 Tiangong adhesive paper丨, very similar to the ancient Yi Nashi Lu world "offset paper", white, smooth, high toughness, not rotten in water, and with 丨 Tiangong adhesive paper 丨 as the base paper, and then add white porcelain clay paint made of 丨 Tiangong copper paper 丨 can even achieve the effect of "coated paper".

In addition, there are various different types of paper such as Tiangong straw paper, Tiangong bamboo paper, Tiangong rice paper, Tiangong Dan paper, Tiangong oil paper, etc., which are also gradually studied by the craftsmen of the paper mill under the guidance of Gu Yi.

Gu Yi is even urging the paper mill to study a very special "banknote printing paper", as for the use, naturally there is no need to explain.

Ten pieces of one square meter of Tiangong paper, only sell a big gold, although the price is not cheap, but it can definitely not be regarded as expensive, the most important thing is that as long as you pay for this kind of paper, there is a sale in Tiangong Wenbao Shuxuan, unlike 丨Tianheng silk paper丨, due to the output, money may not be able to buy.

Think about it, in the Great Wilderness, a ghost place where "a book is worth ten thousand gold", such a writing vehicle suddenly appeared, so that how can those scholars not go crazy, almost all the businessmen, regardless of what business he originally did, after discovering the Tiangong paper, they all wanted to take out all the money on their bodies and exchange it for paper and transport it back.

As a result, the Tiangong Paper Factory, which was originally built just to make butt paper, suddenly turned into a Tiangong Money Factory, and the paper was made there?

There are many other products like this, such as soap, soap, all kinds of cloth products, Mingguang jade, jasper jade, all kinds of fine wines...... The vast majority of businessmen are on the Golden Avenue, and they haven't been able to go out of the road to 20 meters, so they have spent all the money they brought

This led to a saying among businessmen, that is, "if you don't work in heaven, you don't know how little money you have", and no matter how much you bring, it is not enough.

And the most proud point of Gu Yi is that there is no currency other than workers' currency in the commercial city, and if the merchants want to spend in the commercial city, they must first exchange the large amount of gold brought by the currency exchange into the workers' currency.

When the exchange rate of the Gongmin currency against the gold cake is l:I convertible, it is not exchanged according to the large gold l:l brought by the merchants, but must be smelted on the spot to refine the "pure copper", which is the so-called "red copper" or "red copper", and recast into standard ingots before it can be exchanged with the Gongmin coin.

Although it seems to be a redundant move, with the casting process of the Great Wilderness, there is no way to accurately ensure the weight of each piece of gold.

In terms of the standard of a large gold cake (30 grams), some large gold is less than UU0 grams, some large gold is as high as 0 grams, and even the low ones are only 500 grams, and the high ones can reach 700 grams, which is too big.

Moreover, the big gold cakes brought by the merchants from all over the world are not uniform materials, because of the different productions in different places, what brass, bronze, white copper, and copper are different, but the purchasing power is the same.

The impurities contained in various coppers, or alloy compositions, are also different, such as "tin, zinc, nickel", and some also contain "lead" and "aluminum", all of which have different melting points:

Tin 23°C, Lead 8°C, Zinc 0°C, Aluminum UU0°C, Copper 1083°C, Nickel 1453°C (rounded to the nearest decimal place).

Therefore, after a simple melting point separation, acid-base replacement of heating and condensation process, you can obtain relatively pure metals of various colors (the existing technology has not been able to achieve absolute purification), brass contains about 40% zinc, bronze contains about 35% tin, cupronickel contains about 30%, and the alloy "impurities" such as silver contained in relatively pure copper are about 10%.

These "impurities", which account for about 30% of the composition of Dajin on average, are of course directly "discarded", and the remaining about 70% of the copper can be cast into a standard ingot of 630 grams, and then exchanged with the Currency Exchange丨l:l into Gongmin currency, which has directly shrunk by three percent

In order to refine Daikin, Gu Yi also specially asked the famous craftsmen to design a set of special furnaces of different sizes and sizes, which can accurately control the temperature, so as to separate different metal "impurities" at a specific temperature.

Merchants from all over the world were surprised and inexplicable, they used the big gold cake for a lifetime, but they never knew that this big gold cake contained so many impurities, but if you think that it is not cost-effective to lose, the currency exchange丨 will still give the full amount before the smelting of the gold丨Tianheng gold roll丨, or Yu Crisp will return the same amount of gold cake to you.

It's just that the price of using 丨Tianheng gold rolls丨 to buy Tiangong products is twice as expensive as using Gongmin coins to buy, and it is still cost-effective to exchange Gongmin coins.

Why don't you take it?

The staff of the currency exchange will reach out with contempt on their faces: "You can also use these bad gold as money?

In addition to the gorgeous face-covering defeat, you can choose to go home directly, or you can sell the goods you brought to the commercial city, and then receive the heavenly gold scroll used to pay for the goods, that is, a palm-sized delicate metal check board.

丨Commercial City丨Only use 丨Tiangong Golden Roll丨Pay for the goods, do not pay for the Golden Cake and 丨Tianheng Golden Roll丨, but 丨Tiangong Golden Roll丨 can only be used in 丨Commercial City丨, which is the same as the shopping card issued in the supermarket, although the money is not less than you, but it is limited to the death of the money can only be spent in the Commercial City.

It is equivalent to saying that after the merchants dragged the goods from all over the country, they didn't want to take a dime away from the commercial city, and only the various heavenly products in the commercial city could be taken away, which belonged to "compulsory consumption".

Whether it's the Gongmin Currency or the Tiangong Gold Scroll, it's useless to leave the Commercial City, so it's good if you spend all the Gongmin coins exchanged on your body at one time, if you don't spend it all, you have to do it again next time, otherwise the money is not wasted?

But the rest of the money, next time I come, it will definitely not be enough to spend, and I have to use a lot of gold to exchange, if I can't spend it again, I have to come again next time... A vicious circle is formed

Okay, take 10,000 steps back and say, even if you calculate accurately, you just spent all the workers' and people's coins, and you won't come next time? As a businessman, are you willing to put the supply of those heavenly products in the commercial city and never come again?

The answer is yes, isn't it?

Therefore, although the businessmen complain about the various systems of the commercial city, they can't help but act according to the rules of the commercial city.

And all this is exactly what Gu Yi wants to achieve through the Commercial City: to break the original laws of the Great Wilderness World and establish the unique rules of the Tiangong Group, or in other words, he wants to change from a "rule obedient" to a "rule maker".

Gu Yi smiled with satisfaction while observing the various changes in the 丨Commercial City丨, as far as it seems at present, his plan is still very successful, although the remote corner of the 丨Commercial City丨 has not been able to use its own rules to influence the entire Great Wilderness World, but at the very least, he already has a counterweight tool to change the laws of the Great Wilderness.

"Isn't the commercial city not allowed to enter the untidy people? How did these filthy barbarians get in? What about you managers? Why don't you go and call the chengguan and blast them out?"

Gu Yi, who was looking beautiful, suddenly heard someone behind him scolding him arrogantly, and suddenly heard the words "manager" and "chengguan", and looked back in astonishment, but it was a businessman who was pointing fingers at them.

Gu Yileng remembered for a moment that he appointed the manager of the shop as the "manager", and called the Gothic Xuanbing, who manages the commercial city, and the public security, as the "city manager", which is still a product of his bad taste.

But how could he be taught a lesson?

Gu Yi looked down at himself, then looked back at Ziyu with a helpless face, and understood, he violated the rule of "those who are not in good clothes are not allowed to enter" formulated by himself, but even if he violated the law by "knowing the law and breaking the law", when will it be the turn of this foreign businessman to teach him?

I looked at this fat-headed and big-eared guy in surprise, dressed in a luxurious brocade robe, and followed by a group of guards, but it didn't look like a big man, it seemed that he was either the accountant of the trading house or the local tyrant of the clan.

The customer is God, people always come to give him money, Gu Yi felt that he needed to be kind, so he smiled without worrying with him.

The local tyrant saw Gu Yi smiling at him, and thought that his might just now shocked these turtles, coupled with the eyes cast by the customers in the store, he proudly said to the shopping guide beside him: "Don't hurry up and beat these dirty donkey goods out of the road, don't be afraid that I will support you with my uncle, just teach them a lesson."

The slim shopping guide on the side was full of embarrassment, but she wanted to roll her eyes at this leopard, they had seen Tiangong in the training class, and they had already recognized the Tiangong of the "Weifu Private Visit", if it weren't for Mr. Ziyu next to Tiangong who secretly waved his hand to her when he came in, not to alarm the guests, they would have come to salute a long time ago.

And this local tyrant actually asked her to drive Tiangong out of the city, isn't this a pit person?