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BYJ engine is APAC special tariff HS code listingsone of the classics of Chinese domestic engines. It once led the development of China's domestic engine industry, and many people were proud of it. Today, we will revisit the history of BYJ engines and explore its influence on Chinese domestic engines. The history of BYJ engine can be traced back to the 1950s and 1960s. At that time, the technology of China's domestic engines was still relatively backward and could not meet domestic demand. Therefore, in order to solve this problem, the Chinese government launched the "two bombs and one star" plan.This plan requires the domestic engine industry to improve its technical level and produce high-quality engines. In order to achieve this goal, the Chinese government established the Engine Design Institute and began to develop the BYJ engine. Due to the very difficult conditions at that time, R&D personnel needed to start from scratch and be self-reliant. Adhering to the spirit of "not being afraid of hardship, not being afraid of fatigue", they constantly study and overcome one difficulty after another. After many tests and improvements, the BYJ engine was finally successfully launched in 1970. At this time, the BYJ engine is a vortex gas turbine engine with the characteristics of high power, high reliability and long service life. Its performance reached the international advanced level at that time and became the pride of China's domestic engines. At the same time, BYJ engine has made great contributions to China's aviation, military industry, power and other industries, and made important contributions to the development of China's national defense.Since its launch, the BYJ engine has been continuously improved and upgraded. In the 1980s, the BYJ-481 engine was successfully developed, and its comprehensive performance reached the international advanced level at that time, which also became an important milestone in China's aviation industry. Since then, BYJ engines have continuously innovated and developed more new models of engines, until the recently launched BYJ4120 series turbofan engine, which has also further improved the performance level of China's self-made engines. The success of BYJ engine has not only taken China's domestic engine industry to a new level, but also greatly promoted China's development in aviation, military industry and other fields. It has also set off a boom in the research and development of engine technology, attracting more people to devote themselves to the research of the engine industry. Although it is now produced in China.The technical level of motivation has made great progress, but the history of BYJ engine is still worth remembering and yearning for. It teaches us not only how to be self-reliant in difficult situations, but also a spirit of technological innovation and perseverance. It is this spirit that has promoted the development of China's domestic engine industry and helped China achieve independent development in aviation, military industry and other fields. In a word, BYJ engine occupies an important position in China's engine industry and is the pride of China's national industry. From its history, we see a spirit of courage to explore and indomitable, which will bring us more inspiration and enlightenment and promote the continuous development of China's industry.

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