... : 2000mm 2200mm 2500mm3,Diameter of polishing roller:φ370mm4,Heating of polishing roller: rotary electrical resistances5,The temperature range of polishing roller: 5 ... /min7,The rotary speed of polishing roller: 1000 r/min8,Electrical heating power: 49.2KW(2000mm) 52.2KW(2200mm) 57.45KW(2500mm ...