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    Punching/scribing brake discs
    
							
    
							
    
								
    Parameter ：
    
								
    
	1. Reduce the overall weight of the brake disc

    

    
	2. Good heat dissipation effect and low wind noise

    

    
	3. Improve the braking effect and friction performance

    

    
	4. The wear of the brake surface can be judged by the depth of the scribe groove