High Speed Steel Mill Roll and HSS Ring manufacturer / supplier in China, offering Specification & Oslash; 280 - & Oslash; 850 mm Centrifugal Casting Hbw Patented High Speed Steel Roll, Professional Roller Manufacturer Finished Stand Mill Roll Steel Rolling Roller for Hot-Rolled Metal Making, High Speed Steel Rolls HSS Work Rolls for Steel Rolling with Excellent Quality Guarantee The Steel Pass Capacity and so on.