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You are just making trouble everywhere, but Yu Yanong really has this idea. He is fighting against Japan and attacking the Japanese. He is afraid of revenge and even farts. Why not dig a hole and hide it?

Moreover, when Yang Tianfeng spoke, he had no fear or worries on his face, and seemed to have been confident.

"There is a regiment of the National Army, and the enemy is defeated again. I guess there will be no sufficient troops to be drawn in the short term." Yu Yanong nodded and said, "East Henan should be relatively stable in recent times, but you should not take it lightly!"

Yang Tianfeng smiled and nodded, but did not explain too much. The reinforcements were not just a regiment sent by the Third Army, but also the Yellow Flood Zone in Zhoukou to Jieshou. The temporary cavalry division was commanded by Sun Tongxuan. After 1940, it was reorganized and renamed the Eighth Cavalry Division.

In August 1937, Chairman Jiang ordered Ma Bufang from Qinghai to send troops to participate in the War of Resistance. Inspired by the people's calls for the national anti-Japanese war, Ma Bufang's attitude towards Japan also underwent some positive changes. At the same time, out of the intention of taking the opportunity to expand the troops, he decided to send a force to the Central Plains to participate in the War of Resistance on the premise of preserving the strength of his regular troops.

Therefore, based on the First Brigade and the Second Brigade of the Southern Border Regional Security Command of the Qinghai Southern Border Region, Ma Bufang recruited militias from the three counties of Datong, Mujia and Huangyuan (the Jingzhuang used to supplement the vacancies after the Southern Border Regional Security Command was transferred), as well as the old and weak soldiers eliminated by the 100th Division, as well as the Malu tribe of the Second Brigade of the Fifth Brigade of the Cavalry of the Ma Bu Qing army stationed in the Hexi Corridor, and formed a cavalry division of about 8,000 people. The soldiers were Hui, Han, Sala, Dongxiang, Baoan, Tibetan, and other ethnic groups, especially Hui people.

Obviously, the cavalry division drawn by Ma Bufang was not his main force. Sending such a team out of the province to fight against Japan did not have any impact on his military strength. However, at the critical moment when the disaster of national destruction was imminent, he was ordered to send troops to participate in the anti-Japanese war and joined the ranks of the anti-Japanese national united front, which to a certain extent also showed patriotic thoughts and national consciousness, and played a certain positive role in ensuring the stability of the northwest anti-Japanese rear. This is worthy of recognition.

On September 1, 1937, with the warm farewell of all ethnic groups and all walks of life in Xining, Ma Biao's army set off from Xining, and then passed through Lanzhou and Pingliang to Qian County, Shaanxi. The people along the way also expressed their warm farewell to the war against the Japanese soldiers, which made the troops energetic and the military power. From then on, eight thousand Qinghai athletes began their anti-Japanese career of moving to the Central Plains thousands of miles.

In 1938, the Cavalry Division (at the timely numbered First Cavalry Division) crossed the north and crossed the Yellow River to the Ruicheng area in southern Shanxi, and attacked the Japanese army in Yuncheng, ensuring the safety of Tongguan; later, in counties such as Weishi, Fugou, Yanling and West China, they also achieved a record of annihilation of thousands of Japanese and puppet troops.

Soon, the reorganized cavalry division dispatched the entire division to the Yellow Flood Zone in the southeast of Henan Province from Zhoukou to Jieshou, with the main force stationed in Xiangcheng, with the mission to defend the Japanese army in Huaiyang.

According to history, the cavalry division not only often crossed the Yellow River, but also attacked the Japanese army in the Huaiyang area in the form of "small cavalry groups". It even besieged Huaiyang City, occupied the western pass of Huaiyang City, and carried out surprise attacks with light cavalry behind the enemy, resulting in the Japanese army reinforced from Kaifeng being attacked from both sides and finally retreating.

With such a brave and brave friendly army, Yang Tianfeng could certainly think that the situation in eastern Henan is not critical, and there will be even greater changes in the future. Xu, Beng, or the enemy along Jinpu are his biggest threat.

After seeing off Yu Yanong, Yang Tianfeng sat down to see the long letter sent by Feng Gang. It was sent by Yongcheng and a summary of work in all aspects. At most half a month, a summary information will be delivered to Yang Tianfeng.

He didn't leave for a long time, but the military breakthrough in the summary information made Yang Tianfeng excited.

First, the ironworks finally smelted tungsten iron alloy and carbon steel using crucible steelmaking method, and are using tungsten concentrate transported from the rear to refine tungsten alloy steel and high-speed alloy steel.

Secondly, after thousands of tests, mild steels similar to the tensile and ductility of copper have also made breakthrough progress, and copper clad experiments are being conducted.

Just these two good news made Yang Tianfeng so excited that he was unable to control himself. He paced back and forth in the house, imagining the great leap forward of the military industry.

The success of the crucible steelmaking method can be said to have solved the technical problems such as the new method of smelting steel, refining pure tungsten, refining ferroalloys, alloy steels and front steels (high-speed tool steels).

Tungsten iron is the material for making barrel steel, and tungsten steel is also the tool steel needed to produce aircraft, tanks, warships and various light and heavy weapons. In the current lack of imported materials, the successful refining of wartime alloy steel will directly ensure that high-quality materials can be obtained in military production.

This should be their glory. Yang Tianfeng thought of the thousands of scientific and technological workers who were working hard and working hard in the rear for the War of Resistance.

The crucible steelmaking method was a success in 1939 in history. In 1939, metallurgical experts such as Zhou Zhihong and Qiu Yuchi were successfully tested. Using this technology, the quality of the tungsten die steel made by the 28th Plant of the Arsenal was comparable to that of the imported Baifeng Steel. During the War of Resistance Against Japan, the special alloy steel, machine gun barrel steel, non-retractable steel, stainless steel, spring steel, and special alloy castings produced by the factory basically met the military needs of the War of Resistance Against Japan.

Yang Tianfeng's ironworks can smelter tungsten alloys, which means that it is not far away to make special alloy steels such as mold steel, tool steel, gun barrel steel, and spring steel. If mild steel copper clad is successful, it will bring ammunition production into a new historical chapter.

This is the contribution and hard work of his ancestors. Without them, Yang Tianfeng would not have so much information available, and there would not be so much hard work and self-reliance to inspire him.

The breakthrough in key technologies not only means the overall improvement of China's smelting technology, but also has extremely important significance for the development and growth of the Suzhou base and the third column.

With high-carbon steel and tungsten alloys, a major problem of homemade machinery and equipment has been solved. In addition to complex machinery and equipment, Yang Tianfeng is also preparing to manufacture a batch of simple pedal machines to distribute more military production into home workshops to reduce the burden on the arsenal and increase production.
Chapter completed!