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What are the requirements for precision medical components?


你知道医疗精密零部件有哪些要求吗?我来给你讲讲。圆柱为例:比如圆柱直径是多少,有严格要求,正负误差在规定要求范围之内才是合格零件,否则都是不合格零件;

Do you know what requirements are imposed on precision medical components? Let me explain. Take a cylinder as an example: for instance, there are strict specifications for the cylinder’s diameter—only when the positive and negative tolerance falls within the prescribed range is the part considered合格; otherwise, it is deemed不合格.
For example, with a cylindrical insert, if the diameter is too large—exceeding the allowable tolerance range—it will be impossible to insert; conversely, if the actual diameter is too small—falling below the lower limit of the permissible negative tolerance—it will result in an overly loose fit that lacks sufficient security.
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