{"description":"In the production of enterprises, often forget the water ring vacuum pump to drain oil, resulting in its surface oil many, small make up below to teach you how to drain water ring vacuum pump. If you want to replace all the oil in the tank of the water ring vacuum pump, you can unscrew the oil drain\u2026","published":"2019-10-28 15:48:58","title":"How does the feed ring vacuum pump drain oil","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcoatingmachine.hateblo.jp%2Fentry%2F2019%2F10%2F28%2F154858\" title=\"How does the feed ring vacuum pump drain oil - vacuum pump\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"provider_url":"https://hatena.blog","type":"rich","width":"100%","blog_url":"https://coatingmachine.hateblo.jp/","author_url":"https://blog.hatena.ne.jp/jinzhenrongs/","provider_name":"Hatena Blog","height":"190","author_name":"jinzhenrongs","blog_title":"vacuum pump","version":"1.0","url":"https://coatingmachine.hateblo.jp/entry/2019/10/28/154858","image_url":null}