levelling rollers: 1.the rollers used for levelling the plates. 2.material:GCr15. 3.Hardness:HB280-320. 4.length: within 4 meters. 5.diameter: according to your requirements. 6. surface treatment: usually be Cr-plating,(Cr-plating thickness is as per customers' require.), quenching,and polishing.NO. PRODUCT NAME SPECIFICATION MATERIAL HEAT TREATMENT SURFACE TREATMENT1 leveling roller φ19.05×1473 GCr15 high quenching HRC58-61 chrome-plating 0.03mm2 leveling roller φ19.05×2021 GCr15 high quenching HRC58-61 chrome-plating 0.03mm3 leveling roller φ25.4×1643 GCr15 high quenching HRC58-61 chrome-plating 0.03mm4 leveling roller φ25.4×2025 GCr15 high quenching HRC58-61 chrome-plating 0.03mm5 leveling roller φ25.4×2176 GCr15 high quenching HRC58-61 chrome-plating 0.03mm6 leveling roller φ28×1881 GCr15 high quenching HRC58-61 chrome-plating 0.03mm7 leveling roller φ35×1833 GCr15 high quenching HRC58-61 chrome-plating 0.03mm8 leveling roller φ38.1×2176 GCr15 high quenching HRC58-61 chrome-plating 0.03mm9 leveling roller φ40×1701 GCr15 high quenching HRC58-61 chrome-plating 0.03mm10 leveling roller φ40×1880 GCr15 high quenching HRC58-61 chrome-plating 0.03mm11 leveling roller φ40×1884 GCr15 high quenching HRC58-61 chrome-plating 0.03mm12 leveling roller φ42×2010 GCr15 high quenching HRC58-61 chrome-plating 0.03mm13 leveling roller φ50×2010 GCr15 high quenching HRC58-61 chrome-plating 0.03mm14 leveling roller φ55×1837 GCr15 high quenching HRC58-61 chrome-plating 0.03mm15 leveling roller φ55×2014 GCr15 high quenching HRC58-61 chrome-plating 0.03mmChongqing Beichuang Mechanical& Electrical Technology Co., Ltd. specailizes in the non-standard mechaning spare parts. we can produce as per your drawings or your requirements, welcome to contact for business.