Isbn: 9787502633554 - 特种设备专业培训教材:电梯安装与维修技术 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2011 08 Pages: 230 Publisher: China Metrology Publishing House special equipment professional training materials: elevator installation and maintenance of technology introduces the Elevator basic knowledge. the elevator normal operation should meet the working conditions. the performance of the whole. relationship between the elevator and the building. the structure of the elevator. the elevator safety device elevator installation and maintenance basics. labor supplies an.…