Spherical roller bearings have double row rollers, the outer ring has a shared spherical raceway, and the inner ring has two raceways that are inclined at an angle relative to the bearing axis. This
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In order to improve the radiation resistance of solar cells, lithium-doped solar cells can be made. This kind of battery can recover by itself after irradiation, so it is eye-catching. Lithium has a
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Yixing Tian Yun Ceramics Co., Ltd. has been committed to the design, development and manufacture of industrial ceramic products since 2012. Particularly in alumina ceramic grinding core for
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