Therefore, whether it is the welding of the barrel and the barrel or the insertion of the gun into the barrel, it is just right, no more, no less.

Yang Tingjian also designed a wheel-type gun carriage similar to that of modern artillery for the "Weida General Cannon" he made, and this wheel-type gun carriage is actually very simple, that is, a pair of wheels and a pair of herringbone arms.

The herringbone arm is like a person's legs, when moving, the herringbone arm is put away, pulled by the horse, and when the "Shenwei General Cannon" needs to shoot, the herringbone arm is deployed, and the recoil of the artillery shot can be completely offset by the herringbone arm.

In mid-October, the craftsmen sent by the Beijing division and the 100,000 catties of iron purchased arrived in Tongzhou, at this time the population density of Tongzhou was very high, and the land was also very tight, so Yang Tingjian had to arrange these craftsmen in the military camp next to the school field.

Those recruits had already built enough barracks to use as Yang Tingjian's armor workshop.

The firearms workshop located in Tongzhou City is only used to make muskets and artillery, because those machines are too important, and it is still reassuring for Yang Tingjian to be placed in the city.

Now that the manufacture of muskets and artillery has been regularized, but fifty people are obviously not enough, Yang Tingjian selected a hundred slightly literate people from the blacksmiths sent to send them over.

Among these people, Wang Daniu left a deep influence on Yang Tingjian, this person is loyal and honest, down-to-earth, and also likes to do firearms work, so Wang Daniu has now been promoted to the owner of the firearms workshop, and the annual salary has risen to sixty taels, which is the same as the annual salary of a seven-grade county order.

Half of the 100,000 catties of iron sent were pig iron and half wrought iron, and Yang Tingjian had to organize people to smelt the iron into steel by frying steel.

As the name suggests, the steel frying method is like stir-frying, putting pig iron and wrought iron into the crucible in proportion to melt, and then stirring constantly, adding quicklime to absorb the sulfur and other impurities in the molten iron.

Pig iron has high carbon content, wrought iron has low carbon content, after the two are fused, the carbon content of molten iron will be reduced, if the carbon content of molten iron is between 0.02-2.06%, it is molten steel, in order to ensure the hardness and toughness of steel, the carbon content should generally be controlled below 1.7.

According to this requirement, it is just half pig iron and half wrought iron, and the carbon content of the steel smelted is about 1.5%.

Of course, with the smelting technology of the Ming Dynasty, there are still a lot of impurities, but it can definitely reach the level of steel used in the construction of ordinary houses.

The only requirement of Yang Tingjian is that these craftsmen should pour the molten steel into the steel plate mold and make a steel plate with a length and width of not less than one zhang, with a thickness of one millimeter.

As long as the steel plate is produced, you can directly use the stamping machine to make plate armor, so that the defense strength of plate armor is at least equivalent to two layers of fish scale armor, except for the bed crossbow can not resist, other bows and arrows are difficult to shoot through seventy paces away.

Every day, thousands of soldiers are training with slogans, and the steelmaking workshop is full of smoke, and the firearms workshop in Tongzhou is tinkling all day long.

There must be pollution, but there is no environmental awareness among people nowadays. Those who are in business found that because there were suddenly thousands more people outside the city, their business was suddenly better, these Jinyi guards needed to buy too many things, and the daily demand for pork, grain and vegetables was huge, and Yang Tingjian's food for these recruits was not bad, each person had half a catty of meat every day, and the rice and vegetables were enough, which was a standard of living that ordinary small landlords could not reach.

The same is true for coke, cloth, and medicinal herbs, which are in great demand. A Nanzhen Fusi quilt workshop also began to recruit workers in Tongzhou, and thousands of female workers had a lucrative job.

Because of the restrictions of concepts, these female workers do not need to go to work in the workshop, but only need to go to the workshop to receive cloth and cotton, and when they return home, they do it alone according to the requirements of the workshop, but the workshop pays the wages by the piece, and should not be on credit.

A skilled female worker generally earns about two taels of silver a month, and in this era of natural and man-made disasters, a job of two taels of silver a month is already considered a high salary. Women have money to spend, and those recruits and craftsmen also need to spend.

Tongzhou, which was originally a transportation hub, became more prosperous, and even beggars were much less, because these beggars went to help transport coke, and there was still a surplus in addition to food and clothing.

Since Yang Jialong recognized Yang Tingjian as his uncle, he has worked harder and harder to help Yang Tingjian buy horses, and constantly sent people to contact horse dealers.

After more than a month of busyness, Yang Jialong helped Yang Tingjian buy more than 3,000 horses, but there are not many suitable for war horses, only about 1,000, and the rest of the horses can only be used as horses.

Now that there are horses, it is necessary to make four-wheeled carriages, otherwise how to transport them. Yang Tingjian is building a firearms army, and the materials consumed can be very large, this four-wheeled carriage must be manufactured, and at the same time, gunpowder and mini lead bullets are now being manufactured.

As a result, there were not enough craftsmen in Yang Tingjian's hands, so Yang Tingjian had to write a letter asking Chang Yanxiao and Cao Shaoqin to send carpenters and gunpowder craftsmen to Tongzhou to deal with the errand, and at the same time, the materials for making gunpowder and mini bullets had to be purchased in large quantities.

Because the artisan households who came to Tongzhou in the early stage had white flowers and silver sent home every month, so the matter of requisitioning the artisan households this time was very smooth, and many people rushed to Tongzhou to pay for the errand.

In order to build a four-wheeled carriage, Yang Tingjian felt that he had to go back to Hyundai again to buy some bearings back, commonly known as "marbles", and at the same time there was another thing that Yang Tingjian needed to deal with, that is, Yang Tingjian asked a private detective to investigate the property of the mayor of Haishi.

Yang Tingjian found a free day and traveled from the bedroom of the Tongzhou firearms workshop to the modern era. Yang Tingjian, who returned to modern times, hurriedly turned on the computer and checked his mailbox, there was indeed a letter in it, Yang Tingjian took a general look, there were many detailed information in it, all of which were the property of the head of the overseas market.

Chen Wei talked about how honest he was on the TV station, and as a result, this mongrel alone has more than 300 sets of real estate in China and more than 10 foreign properties, and the value of these properties is not less than tens of billions.

With Chen Wei's salary, even if he has worked for hundreds of thousands of years, he can't afford to buy so many houses, and it goes without saying how these assets came to be known - he can only be greedy for ink.

Yang Tingjian did not hesitate, and hurriedly transferred the remaining money to the account of the private detective agency, and at the same time asked them to keep a low profile for the time being, because Yang Tingjian was going to do something to Chen Wei.

Now that the network is so developed, Yang Tingjian doesn't have to take the road of reporting at all, sometimes he will cause unnecessary trouble to himself, wouldn't it be a snake to fight and not die but to cause a commotion.

……