Tungsten carbide cold heading die used for punching fasteners. Such as bolts , nuts, nails, studs,ect.The cemented carbide cold heading die is required to have good impact toughness, fracture toughness, fatigue strength, bending strength, and wear resistance,Divided by detailed fastener products, there are bolt die, screw die, nut die, hexagon nuts with flange die, drill point die etc. The carbide grade for flanged

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