Vacuumpumpoil window parts Yaoliu Chu also excluded from the appropriate gap.
真空泵油窗部位也要留出适当的空隙排除废气。
2
The choice and application of the general vacuumpumpoil are described, a reference is given to the user, service workers, works and sales departments in the article.
介绍常用真空泵油的选择考虑和应用实例，供用户、有关厂商和维修人员参考。
3
Use no oilvacuumpump, avoid polluting the environment in the production.