The battle always continued, and the frequent invasions of the Japanese forced the arsenal to be transferred frequently. The Japanese planes often took special care of this Eighth Route Army arsenal, so the people in the arsenal often had to pack up and hide in the woods. Fortunately, there were not many things, and there was nothing particularly important. They packed lightly, loaded mules and horses and left.

Until a certain Eighth Route Army squad discovered a huge cave group deep in the Taihang Mountains, the extremely spacious cave room and extremely hidden entrances and exits. After a little lighting conditions were repaired, it was a unique hiding place. The superior immediately issued an order to transfer this arsenal that could be called a key department to the cave. A platoon of engineers was also helped to transfer.

When Li Wei stepped into the cave, he was so shocked by the dangers in the cave that he opened his mouth wide for a long time. He was simply a masterpiece of fortune from heaven and earth. He did not give much to the magical work of magic than Yaolin's fairyland. The terrain at the entrance of the cave halfway up the mountain was easy to defend and difficult to attack, and his vision was wide. Even if he was discovered by the Japanese, as long as he had ammunition and food, he could block it for several months. The lime-like rock dozens of meters above the top of the cave was enough to withstand any bomb bombing and artillery bombardment.

"A good place, really a good place!" Li Wei admired the scenery inside and outside the cave, but he soon started to rebuild the arsenal. The entire cave group was more than 600 meters long, with secret cave entrances of all sizes and small. There were springs in the cave. After blowing out several stalactites with zha medicine, several new cave rooms were opened.

Due to the large space in the cave, the superiors have made some mistakes. The arsenal has been instructed to expand its development and is preparing to expand from the original repair department and the refill department into five main functions: gun repair, arms production, fire production, gun research and development and bullet refill.

In addition to closing and strengthening the concealment towards a more lateral opening, secret fortifications at the main opening were built in conjunction with the area. A simple floor was built in the larger main opening, and lighting introduction and ventilation were strengthened on the hidden seams outside.

Repair the flow direction of the aqueous solution containing calcium bicarbonate in the cave and complete the outlet channel, which greatly reduces the humidity in the cave. Li Wei and several maintenance personnel used strong magnets and metal coils to make a simple generator and voltage regulator, which was mounted on the main water channel in the cave. Although the power was not high, it was enough to provide endless power for the lighting and communication in the entire cave.

The expansion of the arsenal has once again entered many new comrades. There are almost a hundred people in the entire arsenal. In addition to blacksmiths, there are also carpenters, but the tools and materials are very limited.

Especially the current fire problems, the fire and bottom fire of bullets, and the fire of grenades are very scarce. Every fire and medicine is transported by anti-Japanese patriots at great cost and even sacrifice their lives.

According to the instructions of the Party Central Committee, everything is self-reliant, hard work, and trying every means to solve the fire problem in front of him has become the most troublesome thing that has troubled Li Wei. Because Li Wei is a new arsenal and has insufficient qualifications, he has to be appointed as a technical consultant. What is a technical consultant? It is a special manager who asks questions. At least Director Li explained this way, because everyone can get answers and tips from Li Wei to the point of encountering problems. Li Wei has become an indispensable and important part of the arsenal. The arms are in the eyes of everyone and powerful people.

The arsenal originally had a treasure of the factory. The standard military production booklet of the former Kuomintang Army Northeast Arsenal was not very high in culture and could not understand the contents. Some chemical names and technical terms were not easy to understand, so they could only simply produce some ordinary ammunition. This military booklet was different in Li Wei's hands. Others didn't understand it, but he knew it clearly, such as thunder and mercury, and he knew clearly what was going on. He could only combine the knowledge he had learned before and become an instructor for arms production according to the booklet.

There are many different combinations of fire. The ordinary black fire can be made of ammonium nitrate, conventional medicine*, professional black sorkin, special medicine C4 and plastic medicine. Li Wei is very clear about these formulas. However, here, in the big valleys of the Taihang Mountains, there are many Japanese outside. The extremely lack of resources makes it difficult for Li Wei to cook without rice. Just take the ordinary chemical raw material sulfuric acid as an example. A few dollars in the modern social chemical supplies store is a large bottle. You can buy as much as you want. This ordinary can't be more ordinary sulfuric acid. In this era of the Anti-Japanese War, China, where the chemical industry is generally weak, almost no one has heard of this thing called sulfuric acid.

The Japanese blockade and the National Government's deduction made Li Wei very angry. There was no way, so he could only start from the most basic ones. The chemistry I learned in the past started from finished chemical raw materials, but the production of basic chemical materials was not involved in depth.

A group of teams with knowledge of geology were temporarily organized (the team was said to be a few geology students who had finally attracted, plus a few mountain people familiar with the terrain). After Li Wei's special training, he was able to simply identify a few minerals and set off to search for various natural chemical basic materials all over the mountains.

If it weren't for Li Wei, otherwise nouns such as potassium permanganate and potassium chlorate would have stumped the crowd.

God pays off. In the end, someone found sulfur near an extinct crater. Nitrogen was also found in a dry stream pit. Some nitrogen compounds can also be extracted from human urine and converted into nitrogen.

A large amount of mineral materials were piled up in a cave room in the cave. Those mountain people did not expect that these usually inconspicuous things could play an important role in fighting Japan.

The toner is very easy to make. After coking, the high-quality anthracite from Datong, Shanxi is coking and repeatedly screened and finely ground. Li Wei specially designed a set of wood and qualification fire processing tools, and in a special cave room, skilled workers produce fire fire.

After repeated verification of chemical formulas and proportions, Li Wei first synthesized *. With *, there is the most basic material for ammunition production. Smokeless nitrification cotton and * were quickly made out. Standardized ammunition particles and grenade fire-pulling assembly were all made of samples. As long as the raw materials were uninterrupted, the arsenal would produce a large amount of arms continuously. Now the arsenal was initially a bit like an arsenal.

With Li Weishun, the construction of the arsenal did not take many detours, and he took the expressway and made a great leap forward.
Chapter completed!