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China’s First Ultra-precision Gear Technology

Changchun Institute of Optics, Fine Mechanics and Physics

Beginning in the 1960s, a research team from the Changchun Institute of Optics, Fine Mechanics and Physics, led by CAS member WANG Liding, dedicated about 40 years to the development of ultra-precision gears.

The team gradually improved the precision of the gears from grade 7 to grade 1, making China one of few countries with world-leading, ultra-precision gear technology.

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