Forms of Crimping
Hexagonal-Crimp => Grinding mark
Square-Crimp => Grinding mark
F-Crimp 

 

=> Grinding mark

W-Crimp => Grinding mark
Trapezoid-Crimp => Grinding mark
Oval-Crimp => Grinding mark
Four-Mandrel-Crimp => Grinding mark
Mandrel-Crimp  
OVL-Crimp  
O-Crimp  
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