As a professional manufacturer of roots blowers for such a long time, SHANDONG HUADONG BLOWER CO.,LTD has an experienced service team including sales, technical, after-sale service, quality control, etc. Our team has been servicing customers from different area and countries since 1980s. Under the joint effort of our team, our roots blower has been warmly welcomed and widely used in more and more projects all over the world. What's more, many customers from different countries specify to purchase our blowers for their projects.