| and each of its series of cross-sectional size was designed to a fixed value, with a series of cross-sectional size is unchanged, it does not increase the diameter size increase for modern mechanical design of rotating bodies co***ct, lightweight and simplify requirements. It is a small size, light weight, low friction characteristics, widely used in aero***ce, precision machine tools, industrial turntable, radar communications, industrial robots, semiconductor processing equipment, optical processing equipment, medical equipment, textile machinery, and other fields, These devices can significantly save ***ce and reduce weight, reduce friction, and provide good rotation accuracy. |
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