The material is natural granite stone Spindle head: using 45# carbon steel conditioning treatment after rough turning To produce finished products according to drawings after the whole body is hot charged, finishing polish for the surface. ZHONGTIAN RUBBER ROLL MANUFACTURING CO., LTD.(All kinds of rollers for papermaking machine) Mobile:0086-13393887531 Manager:Yang Skype:ztjgcn@163.com Email:ztjgcn@163.com Add: 15 Huaifu road ,Qinyang City, Henan Province, China