The reducer industry in China has undergone significant development, transitioning from reliance on foreign technology to independent research and development. With the absorption of advanced foreign technology and scientific research, China has gradually mastered the design and manufacturing techniques for various high-speed and low-speed heavy-duty gear devices. In recent years, the industry has entered a phase of domestic substitution, with the production of energy-saving and environmentally friendly reducers replacing inefficient and polluting ones. The number of reducer enterprises above a certain scale in China has fluctuated but remained steady, reaching 800 in 2019. The market size of the reducer industry has also shown rapid growth, with production reaching 9.17 million units in 2020, a 7.6% increase compared to the previous year....