... sale from our own factoryMaterial:Cemented carbide. And your drawings are pretty welcomed.Package:Wooden box. The package of parabolic buttons made ... by tungsten carbide scrap for drilling are available based on customers' requirements.Grades as following :YG6 ... YG6X,YG8,YG8.2,YG8L,YG15,YG20,YG20C,YG20D etc are the traditional material,suitable for the normal cemented carbide ...