Isbn: 9787122356925 - 低压电工考证培训教程（视频版） (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2020-05-01 Pages: 265 Language: Chinese Publisher: Chemical Industry Press. This book is written in accordance with the requirements of the Safety Technical Training Program and Evaluation Standards for Low-Voltage Electrical Workers (2011 Edition). including electrical safety Production instructions. basic knowledge of electricians. electrician tools. instruments and safety signs. low-voltage electrical appliances. asynchronous motors. electric circuits. electric lightin. …