does not leave a single rail or a sleeper, destroy the enemy's rail and build your own weapons. The modern arsenal of the Eighth Route Army is actually just a few simple factory buildings hidden in the Taihang Mountains and a cave hanging on high cliffs. The Grenade Bullet is a light artillery with great lethality. In the early days of the national war of resistance, it caused the Eighth Route Army to suffer a lot. Peng Dehuai, deputy commander-in-chief of the Eighth Route Army, ordered: "The enemy has grenade launchers, and we must have them too." Soon, in the secret canyon of the Taihang Mountains, a large number of top technical talents from the Eighth Route Army gathered. They began the task of imitating grenade launchers in their arsenal Huangyadong . After repeatedly paying attention to the captured Japanese grenade launchers, the engineers suffered difficulties. Where did the raw materials come from? Steel is the most urgent need of the arsenal, and the Japanese railway has always been a big trouble for us. I have come up with a solution to kill two birds with one stone. I have to deal with the rails and build weapons. I can only consider using hard and brittle local pig iron. After returning from studying abroad, the metallurgical engineer and the workers took the method of combining earth and oceans to develop a "flame reflection heating furnace". After "traveling" in , pig iron becomes very tough and easy to process. The original rifling design of the cannon barrel requires the precision machine tool processing. Engineers in the mountains have taken a different approach, changing the cannon barrel to a smooth bore structure, and lengthening the cannon barrel and thickening the cannon wall, which greatly improved the range and accuracy.
In April 1941, the first batch of grenade launchers and artillery shells were successfully tested, with a range of up to 700 meters. By the end of the War of Resistance Against Japan in 1945, the Eighth Route Army Arsenal produced a total of 2,500 grenade launchers and more than 200,000 artillery shells, greatly enhancing the firepower of the Eighth Route Army. The grenade launcher is worthy of the glorious title of "a hero of the War of Resistance".
Just when the War of Resistance Against Japan was victorious, in response to some people's misunderstandings about weapons and the power of the people, Mao Zedong once again put forward the principle of "self-reliance" in his speech " Current Situation After the Victory of the Anti-Japanese War and Our Policy" at the Yan'an Cadres Meeting on August 13, 1945.
He said: "What basis should our policy be placed on? It is called self-reliance. We are not isolated. All countries and people in the world that oppose imperialism are our friends, but we emphasize self-reliance. We can rely on the strength of our own organization to defeat all Chinese and foreign reactionaries."
From then on, "self-reliance" has become a slogan for the struggle of the Communist Party of China and the Chinese people to believe in themselves, rely on themselves, and overcome all difficulties and obstacles.
In the blink of an eye, there were great changes. Today, "Made in China" has become "Made in China", and what will never change is the innovative wisdom and enterprising spirit of the Chinese people.
