ISBN: 9787502934255 - 电梯作业/全国特种作业人员安全技术培训考核统编教材 (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback Pages Number: 263 This kit is introduced special operations personnel security must have the technical knowledge. including basic theoretical knowledge and practical skills. financial science. practicality. systematic in one. before the appointment of the special operations personnel. as designated materials for safety and technical training to obtain the special operations certificate in the People's Republic of China. but also posts to continuously consolidate and.…