
INDUSTRIAL SYSTEMS, INSTALLATIONS AND EQUIPMENT AND INDUSTRIAL PRODUCTS - STRUCTURING PRINCIPLES AND REFERENCE DESIGNATIONS - PART 2: CLASSIFICATION OF OBJECTS AND CODES FOR CLASSES
出版:European Committee for Standards - Electrical

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INDUSTRIAL SYSTEMS, INSTALLATIONS AND EQUIPMENT AND INDUSTRIAL PRODUCTS - STRUCTURING PRINCIPLES AND REFERENCE DESIGNATIONS - PART 2: CLASSIFICATION OF OBJECTS AND CODES FOR CLASSES
出版:European Committee for Standards - Electrical
专家解读视频