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UL Underwriters Laboratories
استانداردهاي آزمايشگاههاي ايمني
UL Underwriters Laboratories Inc. is chartered to establish maintain and operate laboratories for the examination and testing of devices systems and materials to determine their relation to hazards to life and property and to ascertain define and publish standards classifications and specification for materials devices products equipment constructions methods and systems affecting such hazards.
سال : 2023 تعداد :3585 دسته :Electronic اشتراک :Subscribe پیمایش استانداردها >>
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