The sealing strips seal the suction zones towards the roll interior where no vacuum is created.
密封条用于密封朝向（非真空的）辊内部的抽吸区。
2
Sealing plates are attached to an inner surface and an outer surface at the opening of the roll casing, respectively.
密封板分别结合于压辊箱体的孔的内外表面上。
3
To control the clearance between both sides of bearing chuck in back-up roll, keep sealing tips in a good touching state and use correct spare parts both in function and dimension.