After listening to Zhang Ran's introduction to the bearing, Cheng Dongguo Cui Sanyuan's expression became obviously serious!

Two steel rings, with steel balls, have to fit tightly, not big at all, not small at all, that is not an easy thing!

But Niu Da has a big heart, just like an old bachelor pinching his chin and smiling lewdly at Zhang Ran like a beautiful flower girl: "Captain, this bearing is right, it is estimated that you have to use good steel, those broken copper and iron are not ......"

"Yes!"

Zhang Ran patted his thigh and said: "I'll give you a note now, you go to Secretary Wang to get fifty catties of good steel that we brought back last time to make this bearing - as long as the bearing is successfully made, I will give you another hundred catties of good steel as a reward!" ”

"That's what you said!"

Niu Da was suddenly excited, and ran away with the strip.

These good steels that are ready to be used to build grenadiers and even artillery fire in the future are so lost more than a hundred catties, Zhang Ran is distressed.

But it can't be helped, to make bearings, it is impossible without good steel!

But as long as the bearings can be manufactured, it's all worth it!

Historically, the Eighth Route Army was able to always persist behind enemy lines, maneuver around the devils armed to the teeth under extremely difficult conditions, and continue to strike at them, effectively supporting the chairman's troops to block the Japanese army in the front.

Even in the later stage of the War of Resistance Against Japanese Aggression, the Japanese army once again adjusted its combat strategy, shifted the focus of operations from the frontal battlefield to the rear of the enemy, and was bent on destroying the Eighth Route Army behind the enemy, operating the occupied area, and using the war to support the war to the greatest extent and alleviate the problem of their serious shortage of strategic materials.

But the Eighth Route Army never flinched and still persevered.

By what?

Relying on the indomitable revolutionary fighting spirit and the firm belief in the final victory of the war?

The answer is yes!

But to achieve the final victory, in addition to these, the firm support of the people in the base areas for the Eighth Route Army, no matter how dangerous the conditions, they did not give up the Eighth Route Army, and it was also the most critical factor for the Eighth Route Army to persevere and finally achieve victory in this national war!

For the sake of victory, the common people of each base have paid too much, too much!

In almost every big and small battle, when the soldiers of the Eighth Route Army fought to the death with little devils and traitors on the battlefield, behind them, there were countless ordinary people transporting grain and grass for them, helping them treat and transport the wounded!

After the battle is over, the common people will also use various ways to cover the transfer of the Eighth Route Army......

I don't know how many ordinary people sacrificed their precious lives in order to help the Eighth Route Army, and were caught by little devils and traitors on the way to transport grain and grass......

These things have happened a lot in history!

In this case, if the detachment can build bearings and increase the movement speed and manpower requirements of the chicken bus, it will be too useful!

In the future, those materials that were originally to be carried by several people were put on the chicken bus, and everyone pushed and ran fast, so that the people who firmly supported the Eighth Route Army could reduce the chance of being blocked by the little devils, and all kinds of hard-won valuable materials could fall into the hands of the little devils and traitors......

Although the bearing is small, as long as it is invented, it may be able to save the lives of many ordinary people and many soldiers!

Therefore, not to mention dozens of catties and hundreds of catties of good steel, even if you want to smear your own liver and brain, Zhang Ran is willing!

"Captain, the manufacturing of bearings is too difficult, we dare not guarantee that it will be absolutely successful, or we dare not guarantee that what will be made will be as good as you expect......"

Chengdong National Highway.

After all, there are no CNC lathes now, everything depends on their own eyes, relying on the files in the hands of Cui Sanyuan and those fitter apprentices, and it is not a simple matter to manufacture relatively precise components such as bearings.

"I know it's hard, but don't be afraid to fail, take your time, you will always succeed!"

Zhang Ran encouraged the two of them: "Even if the final product is not so satisfactory, it is definitely much lighter to use it on the chicken bus than to directly let the wheels hit the axle like now, isn't it?" Since the outcome cannot be worse, it can only go in a good direction - what are you worried about? ”

"That's right!"

Hearing this, Cheng Dongguo laughed.

Cui Sanyuan waved the file in his hand fiercely, and said proudly: "This time, it's finally my turn to show my skills!" ”

He knows that several lathes and other things are manual, and he can't do how precise he is, and he feels that he is the oldest and most skilled fitter in the entire base, and he can finally show everyone his superb fitter level!

"Come on lad - I'm optimistic about you......"

Zhang Ran laughed when he saw Cui Sanyuan's actions, and gave him a thumbs up to cheer him on.

"On the bearing side, our second workshop will do our best to do the best it possible!"

Cheng Dongguo issued a military order, and then said: "Captain, now that the coke has come out, as soon as the copper smelter starts, we will have copper, and we will not be able to live on the reloading bullets picked up from the cleaning of the battlefield all the time, right?" ”

"Of course!"

Zhang Ran replied with a smile: "Reloading bullets is an expedient measure after all, and our ultimate goal must be to make our own bullets, even shells, firearms, and ......."

Reloading bullets is really an expedient measure in the middle of nowhere.

Although reloading bullets can be used, due to various reasons, the use effect of reloading bullets is far from being comparable to regular bullets!

Bullets that shoot out do not go in a straight line, somersaults, or the firing distance is far from what is expected, and various situations abound.

Therefore, the fighters no one liked to use reloading bullets.

But there are too few regular original bullets!

In the Eighth Route Army, even those veterans with good marksmanship may use original bullets, and ordinary soldiers are good to use reloading bullets, unless sometimes they have made meritorious contributions, and the commanders may reward them with a few original bullets in order to commend them.

But at present, the little devils have not paid attention to the battlefield behind enemy lines, and the Eighth Route Army still has more or less the opportunity to get some supplies from the outside world, so it has not paid enough attention to self-reliance.

Therefore, in addition to the lack of supplementary ammunition such as some grenades made by the Eighth Route Army in reloading bullets, the self-reliance of making ammunition has not yet been put on the agenda in the general base areas, and it is more likely to rely on supplies from the outside world, or to capture supplies through battles, and to secretly purchase and exchange ammunition from puppet armies and so on.

In the future, when the Japanese army operates the battlefield behind enemy lines, the channels for obtaining supplies from the outside world will be almost blocked, and the Japanese themselves will become poorer and poorer, and they already know that these Tubalu always try to obtain ammunition from them through battle, so the Japanese army will never be like this now, and the situation that a random Japanese soldier goes out with 120 rounds of ammunition on his body, and the Eighth Route Army will never return to the situation of sending back foreign wealth once he kills a devil.

At that time, the Eighth Route Army will really begin to rely on itself, but after all, it will be a little late.

Zhang Ran, who knows the course of history, will not wait until then to remember to make his own bullets.

Making his own bullets and guns has always been something on his mind, and once the opportunity is ripe, he will start with it!

The sooner the detachment has the ability to produce guns and ammunition by itself, the sooner it will have more strength to wrestle with the little devil, which is the goal he has always dreamed of!

"The detachment has a copper mine, and the maximum limit for our self-made bullets is gone, but there is one most important thing, we don't have it at all!"

Cheng Dongguo said: "Punch!" ”

Both the cartridge case and the warhead have to pass through the mold and be stamped and formed!

On the mold side, there is a lathe with Cui Sanyuan, a fitter, to solve it by yourself, as long as he is willing to spend time, Cheng Dongguo believes that it is not too difficult to develop the bullet mold.

As for the primer of the propellant, the sulfuric acid was successfully prepared, and the propellant was not a problem, and Cheng Dongguo already knew about Zhang Ran's experiment with the hair drill two days before the primer.

Although the experiment was unsuccessful, at least I knew that Zhang Ran was already thinking about solving the problem of primer.

But the punch can't solve it!

"Although there is no primer for propellation, we still have a long way to go from making our own bullets, but the punch is this thing, captain, you should pay attention to inquire in advance, don't wait for the matter to come to an end, we are ready, we can make our own bullets at any time, but because there is no punch, we can only stare dryly in the end...... "Cheng Dongguo reminded.

He knew that the detachment was difficult, and he also knew that Zhang Ran was busy all day like a fire on his buttocks, if it wasn't for the last resort, he really didn't want to make trouble for Zhang Ran at this time.

But there are too few of these machines now, if you don't prepare in advance, and wait until the end of the day to think about finding it, it will be difficult!

"Good reminder, if you hadn't reminded me, I really forgot about it!"

Zhang Ran didn't blame Cheng Dongguo for causing trouble for himself.

After all, his family knows his own affairs best, and he doesn't know that he is really the second knife in Deng Fang's mouth?

If everyone hadn't reminded him from time to time, checked and filled in the gaps, and he would have relied on himself alone, even if his head kept spinning 24 hours a day, it was estimated that he would not be able to support such a big stall as the detachment!

But he really hasn't forgotten about the punch!

He had visited the Huangyan Cave Arsenal, but he clearly remembered the punch in the Huangyan Cave made of two stone grinding stones.

Of course, he didn't want to use this kind of clay punch until he had to, after all, the efficiency was not enough!

If you can find out where there is a punch and bring it back, of course it is the best, but if you can't get it, Zhang Ran estimates that she will have to put a handful of wool on the bodies of the old revolutionaries again, and get this home-made punch out first!