Made up primarily of tungsten carbide (WC) bits bound with a metal binder, such as cobalt, cemented carbide incorporates the strength of tungsten with the strength of various other steels. The make-up of cemented carbides can be tailored to fit particular applications, leading to the manufacturing of varieties like YG20, https://flynycheap.com/settore-urgente-per-utensili-del-metallo-duro-di-qualita/