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| CasterLow resistance, low noise, low starting torque, high precision, high strength, long service life, vacuum degassing steel processing technology, low oxygen content, appropriate heat treatment process, enhance the hardness just now, retain toughness, and significantly improve rolling fatigue life. | 
 
                    
                 
                    
                 
                    
                 
                    
                 
                    
                 
                    
                 
                    
                