Qijiang County on January 1, 1941

"Do you need to import your nitrocellulose starch?" Admiral Chen was more concerned about the source of explosives, and the Shancheng government also had quite a few explosives factories in the rear, but because of backward technology and the shortage of raw materials, the output was also miserable.

"Imports? Where do we have that money, we produce digested starch ourselves. Li Yunlong said with a smile, the production technology of digesting starch is still very proud, it is all researched by the Eighth Route Army itself, and Wang Yue only provided some parts and a small amount of raw materials.

"You're also able to produce high explosives?" General Chen's eyes are about to protrude, and the military commander of the Eighth Route Army has also received rumors that the Eighth Route Army can produce explosives in small quantities, but both he and Director Dai believe that the explosives production of the Eighth Route Army is intermittent and cannot last, and even the so-called self-produced explosives may be taken out of waste bombs, but now it seems that this should have formed a complete explosives production system.

"Yes, the most important thing in the production of digested starch is the production of concentrated nitric acid, the key to the production of concentrated nitric acid is the production of concentrated sulfuric acid, we already have a mature simple concentrated sulfuric acid production technology, can continue to produce low-cost concentrated sulfuric acid, our nitrified starch cost is a little lower than black powder." Li Yunlong said with a smile that in the face of the current situation of the Anti-Japanese War and the international situation, northern Shaanxi made a decision to diffuse and digest starch manufacturing technology, and what Li Yunlong is doing now is just to attract the attention of General Chen.

"Can you take me for a tour?" Admiral Chen's eyes are full of expectations, today Qijiang County has solved the domestic steel problem, if it can solve the problem of explosives production will be better, nitrogenified starch can be produced, nitrocellulose cotton can naturally be produced, with concentrated nitric acid, what is needed is not starch and cotton, starch and cotton can grow from the ground, just like the kind of biofuel technology that Li Yunlong developed before.

Subsequently, under the leadership of Li Yunlong, Admiral Chen went to Li Yunlong's concentrated sulfuric acid factory, which claimed to have invested tens of thousands of oceans, but when he saw the rows of huge water tanks and ceramic pipes in front of him, Admiral Chen felt unreal for a while anyway.

Under Li Yunlong's introduction, General Chen finally believed that this was a serious concentrated sulfuric acid factory

In the early days of the Anti-Japanese War, the military technicians of the Eighth Route Army took local materials according to local conditions in the absence of a lead room and stainless steel materials, and used large water tanks with acid-resistant and corrosion-resistant properties, one made into a "male" and the other into a "mother", a pair of upper and lower buckles, stacked into a cylinder tower, punched holes in the cylinder, and each cylinder tower was connected with a lead pipe. Two devices are installed in front of the front tower: one is a triangular copper sulfur box, in which sulfur is placed, the sulfur is ignited, and the bellows are used instead of fans to blow air to produce sulfur dioxide gas; The other is a fire nitrate tank, which is filled with fire nitrate and sulfuric acid, and produces nitrogen oxide gas after heating. All the sulfur oxide, nitrogen oxide gas and oxygen produced enter the cylinder tower together and evaporate through multi-stage circulation to form sulfuric acid.

The Eighth Route Army made improvements while producing and gradually formed mass production of sulfuric acid and nitric acid, and then produced nitroglycerin through the "basin nitrification method," so that the production of gunpowder and explosives in the base areas in North China shifted from black explosives to high explosives, and gradually extended from gunfire propellant to artillery projectile propellant, greatly enhancing the combat effectiveness of the Eighth Route Army.

When Wang Yue came to the time and space of Liangjian, the explosives industry of the Eighth Route Army was still in its infancy, Wang Yue looked at it, where is this okay, and immediately instructed Li Yunlong to upgrade the explosives production process of the Eighth Route Army, and directly upgraded it to the final version, and now what is shown in front of General Chen is this final version of the sulfuric acid production process, this thing, from the current point of view, is the best version under large-scale modern production, and the efficiency and cost are even better than the modern factories of the national government.

Admiral Chen looked at these things in front of him, his eyes were already completely full of little stars, this is all money, one day's output is worth all the production capacity of the Ordnance Industry Administration, what is the price of the concentrated sulfuric acid produced by the Ordnance Industry Administration, it is more expensive than the imported ones, if it is not for the current freight is too expensive, he wants to stop the concentrated sulfuric acid factory of the Ordnance Industry Administration, it is really annoying.

That is, he still wants to have a face, otherwise now he wants to directly requisition this sulfuric acid factory, but whether he can requisition does not mean that he can't buy it, it can't buy concentrated sulfuric acid, buy it back and let those people below operate it, it is estimated that the explosives produced are not cheap, or buy nitrogenated starch, right?

In fact, it is also possible to buy finished weapons, it seems that the cost of the production process of the Ordnance Industry Department is not low, rather than the limited military expenses in the Ordnance Industry Department, it is better to buy more weapons, just like the wooden handle grenade from the Eighth Route Army before, the price is low, the power is huge, the little devil is squeaking, the Ninth War Zone has even used cluster grenades many times to destroy the devil's light tank, although there have been such cases before, but that is basically caused by imported M24 grenades.

Can M24 be the same as Gongzao grenade, M24 has a charge of 170 grams, but Gongzao grenade is only 50 grams, in fact, for various reasons, the charge of the grenade is only a little more than 40 grams, and sometimes it is mixed with a lot of black powder and maroon gunpowder, and the power is just like that.

After seeing the concentrated sulfuric acid plant, Admiral Chen visited the nitric acid factory and the explosives factory, and when he saw Li Yunlong's mountains of corn starch, he broke the defense again, this is all good imported starch, and the Eighth Route Army actually used it directly to make explosives, which is really a waste.

How did he know that the starch here is made of aged corn, which is a specially customized export product of Wang Yue, as a local product of Libby, many of them have been smuggled to the north of the Mediterranean Sea and directly sent to the table, of course, this is only the private behavior of those Libbys, because these starches have been declared industrial starch when they are sold.

Next is the nitrocellulose factory, looking at a large number of cotton wool made of old clothes, Admiral Chen is even more distressed, the most scarce thing in the rear is cloth, but these Eighth Route Army actually did not use cotton as raw materials, but used clothes and cloth to break them to make raw materials, it was simply a violent thing.

When Wang Yue entrusted Chen Xi to collect old clothes, he also received a large part of the pure cotton clothes that were not suitable for transportation to the time and space of the Bright Sword, but these things were not really all exported abroad, so he simply made them into cotton wool, and then cleaned, screened, and beaten into huge bags, and then they could be transported to the time and space of the Bright Sword. In addition to making nitrocellulose raw materials, it can also be used to produce some coarse cloth and fill bedding, which is really worthless.

The nitrocellulose quilts were made into a variety of shapes as needed, and then sorted into different grades, with the high-grade ones being sent to the large factories and the low-grade ones being sent to small workshops with only a few people, and then mixed with black powder and celluloid to reload the bullets.

The reloading bullets on the Qijiang side are very meticulous, as long as they are the caliber of bullets that can be found in China, they can be found here, super-caliber, full-caliber, small-caliber, pointed, round-headed, Admiral Chen feels a little embarrassed to see it, it is simply an unimaginable thing that the army of a big country has so many caliber bullets.

Li Yunlong's bullet casings here were collected during the battle against bandits, some were purchased from the market, and some were even transported from the north by the superiors, not to mention the strong blockade of the materials transported into the base area by the Shancheng government, but there was no problem at all with transporting things from the base area, let alone bullet casings, even weapons and ammunition were no problem, and the Eighth Route Army in North China changed its outfit, and many weapons were simply sold directly to the troops of Chief Hu.

When the Eighth Route Army changed its outfit, it changed a lot of unpopular firearms, and these guns were grouped together, and then re-rifled, rusted, oiled, and equipped with some reloading bullets, whether it was kept in reserve or sold to other military leaders, it was a good thing.

Grenades, bullets, and mines are easy to say, but mortar shells and aerial bombs are different, especially 120mm mortar shells and 500-kilogram aerial bombs, Admiral Chen still remembers them vividly, not long ago Li Yunlong also applied to the Ministry of Military Affairs for aerial bombs, but now he can already produce them himself, although the technical content of this aerial bomb does not seem to be high, but it is also a 500-kilogram aerial bomb, but the Eighth Route Army does not seem to have an aircraft capable of carrying this kind of heavy aerial bomb, and he has understood the parameters of the P-39 fighter, the largest single bomb that can be carried is only 227 kg, could it be that the Eighth Route Army has upgraded its fighters?

Admiral Chen visited many factories again, and the factories he saw before were almost the same, they were all factories with only a few people and an investment of dozens to hundreds of oceans, and there were no bright spots in technology, and many of the equipment was even more simple than the original "seven people's back", but it included many aspects such as clothing, food, housing, and transportation, which could not only meet the needs of the 68th Division and the people of Qijiang County, but also supply the needs of the entire rear, and according to estimates, it would only take three months to recover all the investment.

Envy, excitement, worry, jealousy, anger, disappointment, all kinds of emotions are intertwined, Admiral Chen feels that he is already a little unable to control his state of mind, with such an industrial form, does he still need to worry about the supply of weapons and materials in the rear? As long as these things in Qijiang can be promoted, the government will be able to quickly gain an advantage over the Japanese.

Thinking of the previous explanation from the highest authorities, Admiral Chen felt that it was time to make up his mind.