Traveling through the sword to engage in military industry

After returning to the main plane from Yang Village, Ren Zhong, following Teacher Li Subing, successfully manufactured sulfuric acid starting from pyrite. He personally operated each process to ensure a thorough understanding of the principles before completing a day of high-intensity experimental work.

Reviewing the entire process, one环节 required using 98.3% sulfuric acid to absorb sulfur trioxide. This meant that to produce qualified concentrated sulfuric acid, Ren Zhong had to procure the first batch of seed concentrated sulfuric acid for Plant No. 81.

Opening a search engine, Ren Zhong found that industrial concentrated sulfuric acid in the current world was not too expensive. Depending on the origin, it ranged from a little over one hundred yuan per ton to two hundred yuan per ton. The main price difference might be in the transportation of hazardous chemicals.

However, although the price of these industrial concentrated sulfuric acids was extremely cheap, there were still many restrictions on purchasing them. It wasn't as simple as buying them whenever you wanted; they were controlled hazardous chemicals for sale.

In the main plane, as expected, products related to the upstream and downstream of military supplies were not easily obtainable. After finding this information, Ren Zhong felt another headache coming on. With his current limit-breaking customized set for carrying goods, carrying 10 liters of concentrated sulfuric acid at a time wouldn't be too much of a problem. One ton of concentrated sulfuric acid was about 540 liters, so he could transport it over in about 50 days.

In Ren Zhong's mind, he had no intention of actually going to a place occupied by the Japanese devils to test the waters. After all, whether it was the clothes he wore, his accent, or even his identity information, everything was completely out of sync with this era.

The base could be very tolerant of Ren Zhong because of penicillin. If the same thing fell into the hands of the Japanese devils, Ren Zhong would be caught, exploited, and then thrown into a mine to dig for ore, which would be considered a good outcome.

Ren Zhong naturally knew what was up and never thought about actually going to the Japanese-occupied area to fool around, at least not now.

In that case, how to pretend to have been to Yu Ping City under Hu Zi's nose was a considerable test of Ren Zhong's acting skills.

The next morning, as the sun rose, Ren Zhong said to Hu Zi:

"Hu Zi, the road ahead is all highway. I won't have any problems alone, so you don't have to run back and forth. How about this, you just wait for me to come back in Yang Village. It's harder to spot me if I travel alone. If I encounter any disturbances, I can hide in the mountains, and ordinary people won't be able to find me."

Hu Zi initially shook his head like a rattle drum, firmly disagreeing. "Mr. Ren, the commander's order to me is to safely deliver you to Yu Ping City. I can't give up halfway."

The so-called military order is like a mountain, and what Hu Zi said was true, but Ren Zhong wasn't prepared to fully explain the military order to Hu Zi.

"Hu Zi, this isn't a combat mission, and I'm not a prisoner being escorted. You don't have to be so serious. When Commander Li asks, you can tell him the truth that this is my request. I can't put you in a dangerous situation for my personal sake. This matter is settled. I'll set off alone later."

Seeing Ren Zhong being so serious, Hu Zi hesitated.

Of course, he knew the background of the commander giving him this task, but if Ren Zhong insisted on not using it, it would indeed be difficult to continue following Ren Zhong.

"Mr. Ren, from here on, we're basically out of our base area, and we may encounter bandits or puppet troops at any time. Let me follow you, so I can divert them if we encounter any situation." Hu Zi made one last effort.

"Hu Zi, really, there's no need. To be honest, if we really encounter them, we can only hide. There's no difference between one person or two. I'm now very familiar with using the mountains to evade the enemy. I'll observe carefully along the way and try to avoid them in advance as much as possible." Ren Zhong didn't want to risk entering the Japanese-occupied area, so he sent Hu Zi away, found a cave suitable for storing some items, and then stayed there for a day before returning. This would basically achieve his goal.

Within the base area, he could find several locations to hide the items brought over from the plane as transfer points. This way, receiving some items every now and then would seem more natural.

Although sending things to the base through the Japanese blockade without anyone knowing still had huge loopholes, he couldn't consider so much at this stage. He would take it one step at a time.

Ren Zhong couldn't bring over too many things. This kind of small-scale transportation of key goods was relatively possible in some way.

He believed that people like Li Yunlong wouldn't dwell on these details. If he could strengthen his troops, Li Yunlong wouldn't care how it was done.

Because what Ren Zhong could transport to this plane was either medicine or some military-industrial raw materials, all of which were strategic materials urgently needed by the base. How could he refuse such a mysterious and powerful channel?

Seeing that he couldn't persuade Ren Zhong, Hu Zi could only pout and agree.

Ren Zhong left Hu Zi and began walking alone along the road out of the mountain. After walking seven or eight kilometers, he crossed a mountain and finally saw a simple road!

Ren Zhong's heart tightened, knowing that he had truly reached the Japanese-controlled area.

The presence of a road meant entering the patrol or search radius of the Japanese devils. Ren Zhong looked around. There wasn't a single person on the road or in the vicinity.

However, on the other side of the road, Ren Zhong looked over and saw that the mountain peaks were getting smaller and smaller, and the terrain was getting flatter and flatter. Obviously, the closer he got to Yu Ping City, the fewer mountains there were.

Relatively speaking, the space to avoid the Japanese devils was getting smaller and smaller.

Ren Zhong flashed into the mountains on the side, hid his figure in the mountains, and began to observe the appropriate hiding place.

This was basically the limit of his march. In the short term, unless the base managed to break out, Ren Zhong wouldn't take another step.

After observing for a while, Ren Zhong couldn't find a suitable place nearby, so he simply turned around and walked back a distance. Under a cliff seven or eight hundred meters away from the mountain road, he found several caves. Ren Zhong rolled and crawled into the mountains, and after a lot of effort, he came to the bottom of the cliff and found that these caves were actually quite special. Inside, there was actually a series of interconnected stalactite caves!

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