ISBN: 9787502168872 - 石油工人技术问答系列丛书 注水泵工技术问答` (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date: 2009 Pages: 112 Language: Chinese Publisher: Petroleum Industry Press petroleum workers technical Q & A Series: water injection pump station Technical Q & A flexible question and answer format. combined with the practice of corporate on-site training on injection pump Workers should be aware that the knowledge will the introduction of the system of corporate training. self-study of employees has high reference value. Contents: The first part of the lubricant. How to judge.…