Roll body: Q235b reel pipe; thickness:25mm ; the thickness of the finished product wall is 20mm Spindle head: using 45# carbon steel conditioning treatment after rough turning Bulkhead is made of ht200 cast iron. To produce finished products according to drawings after the whole body is hot charged. Thickness: unilateral thickness: 25-30mm Hardness: a982 The type of rubber surface: zt--ppf-i The performance of rubber surface: high friction coefficient, chemical resistance, , good abrasion resistance, medium temperature 80, acid and alkali resistant. Zhongtian rubber roll manufacturing co., ltd.(all kinds of rollers for papermaking machine)