日本大片免a费观看视频老师,国产98色在线 | 国,久久精品国产亚洲av蜜臀色欲,私人情侣网站

021-69591886
CN / EN
Service hotline:021-69591886
close
Current location: Home > Filtering knowledge

2020/11/4

6、Drying method of filter element

Put the filter element in 55 ℃ ~ 60 electric blast drying oven for 24 hours to ensure that the filter element is completely dry. Otherwise, it is necessary to extend the drying time until the filter element is fully dried. If the quality change of filter element is less than 1% in 1 hour before and after drying, it can be considered that the drying of filter element is completed.