Presumably seeing the excellent performance of the new saber, Bremmer, the chief master craftsman of the forge, asked that this technique be applied to other weapons as well, such as two-handed swords and battle axes, which were commonly used by knights.

Marin thought about it and agreed to the request to use the new technology for the two-handed sword, but did not agree to use the new technology for the tomahawk. Because, using medium carbon steel as the main body of the sword, to put it bluntly, is to enhance the toughness of the slender sword and avoid breaking. But the tomahawk does not have an elongated blade or blade at all, only the head uses some steel. Moreover, the base of the tomahawk is very thick, not as thin as a sword. This is because, in addition to chopping, the tomahawk also has the effect of smashing people. The back half of the axe is a little thick, and there is no worry about breaking at all. Therefore, for the ax of a tomahawk, it is enough to be hard. Therefore, Tomahawks continue to use high-carbon steel as a material. Of course, in carburizing and quenching, new technologies can be used, but not medium carbon steel.

In addition, for plate armor produced by the Beihaikuni Forge Factory, Marin also approved the use of new carburizing and quenching methods to improve its performance. Moreover, the new method of carburizing and quenching was regarded as a state secret by Marin, and it was ordered to be strictly guarded, and those who leaked it were not only to be executed themselves, but also to their families.

After testing, the effect of high-carbon steel plate armor has been improved a lot after surface carburizing treatment. Although it still can't block the damage of heavy lead bullets, it can reduce the damage a lot and reduce the degree of injury to the injured.

In fact, Marin intends to use Harvey armor as the main material for plate armor in the future. Harvey armor, also known as Harvey nickel steel armor, is carburized on the surface of nickel steel, which greatly improves the strength of the armor. And nickel steel itself has good toughness, so the toughness and strength of the armor obtained are very good. Marin even planned to use nickel steel in the future to make sabers. After all, Marin is now sitting on Cuban laterite nickel mines, and there is too much nickel to be desired.

Speaking of this Harvey nickel steel armor, it is actually the armor made by the American Harvey using nickel steel made by the French and carburizing the surface. And why were the French able to come up with nickel steel? This is because the French occupy the island of New Caledonia, another nickel-producing city in the world.

New Caledonia became a French colony in 1853, after which the French discovered huge nickel deposits on the island. How much nickel is there on the island of New Caledonia? Its nickel ore reserves are the largest in the world, accounting for 25% of the world's total, with an annual output of almost 30,000 tons of nickel metal...... This is not steel, but expensive nickel...... Cuba is less than half the population...... Of course, compared to other countries, Cuba still has large nickel reserves......

Moreover, nickel steel has good corrosion resistance and can not rust for a long time. If you add chromium, it is the legendary stainless steel......

In fact, if chromite could be found, Marlin would not use nickel steel, but stainless steel. The stainless steel surface is carburized and excellent. In later generations, many knives were made of stainless steel. But the problem is, Marin doesn't know what chromite looks like. Cuban nickel ore can be found, especially because Cuban nickel ore laterite nickel ore, laterite is easy to find, very conspicuous. Cochromerite ...... Marin suddenly wondered why he didn't study prospecting in his previous life......

Moreover, with stainless steel, you can use stainless steel skin to wrap the bottom of the sea boat, so that it is not afraid of the gnawing of sea maggots (sea maggots dare to gnaw, they have to break their teeth). In addition, it can also strengthen the ability to resist wind and waves.

You must know that today's sea ships, after every voyage, have to be overhauled, and even a lot of wood at the bottom of the ship needs to be replaced. Why? During the long voyage, the bottom of the ship was damaged by sea maggots and the waves on the other. In addition, seawater also has a certain corrosive effect......

After wrapping the stainless steel skin, the ship does not need to be overhauled at every turn. Because, sea maggots can't gnaw at it, and the sea water can't damage the stainless steel skin. In this way, such a ship, anchored in a saltwater port, is not afraid of being corroded by sea maggots. Unlike now, the harbor was generally located at the mouth of the Tamsui River, or simply inside the Tamsui River......

"Looks like we've got to rush Wiltz...... Marin thought. At the same time, he decided to recruit more prospectors and go to Moa, Cuba, to help Wiltz prospect while finding the legendary million-ton chromite reserves. As long as you find that chromite, stainless steel will come out......

……

After returning from the forge base, Marin didn't have time to rest when he received a report from Kohler, and the envoy of England asked to see him......

The envoy of England is not Marin's subordinate, and his subordinates are no longer called emissaries. This envoy was sent by King Edward of England. Moreover, since it is a secret envoy, there must be some important and shady confidential matters to discuss......

After putting on some makeup, Marin left through the side gate of the palace and quietly met Edward's envoy in the villa in the east of the city, where his parents lived......

Sure enough, as Marlin had guessed, Edward really had something very confidential to discuss with him. What are you discussing? How to annex Scotland...... For now, of course, the most important thing is how to get King James IV of Scotland to death......

Edward did not dare to execute James IV directly, after all, Scotland was generally recognized as an independent kingdom in Europe, and James IV was also one of the few kings in Europe. If Edward had killed him, he would have been furious. Although England was isolated and not afraid of other people's opinions, it was a troublesome thing after all. So, Edward decided to plot to kill James IV......

Earlier, Lion Edward opened his mouth and demanded a ransom of millions of gold coins from Scotland. After all, the Scottish king, including the main army, was taken prisoner and, naturally, needed a large ransom. However, the amount of millions of gold coins is really terrifying. Scotland is a poor country in the north, and its territory is not only cold, but also mainly highland. The population is only 500,000. In fact, after Edward captured James IV and the tens of thousands of Scottish troops and people, there was a shortage of young people in Scotland, and this affected Scottish agriculture.

So, Scotland simply can't afford to pay that much ransom. Not to mention 1 million, you can't get 500,000 gold coins.

Of course, Edward didn't really want the money, his real purpose was to annex the Kingdom of Scotland. Today, although James IV is married to Margaret, the daughter of Henry VII, he still has no children (historically, James IV's first child was born in 1507, but in this life, he was captured in 1506, so naturally he has no children). Moreover, both of James IV's brothers have died and have no heirs. So, as long as James IV was murdered, there would be no legitimate monarch and heir to Scotland. There may be distant relatives, but the distant relatives will definitely fight for the throne.

Moreover, Edward and Marin had long discussed that if James IV died unexpectedly, they would declare that James IV had given him the throne during his lifetime, and then forge a will and annex Scotland with Edinburgh......

However, there is a premise, that is, James IV could not die at the hands of Edward, nor could he die in England...... Otherwise, no one believed that James IV would give the throne to Edward......