... ,steel,iron 4.Blank and finished products tungsten carbide dies, wire drawing dies, wire drawing die blank: Products features: 1. wear-resisting: useing GB ... : using advance cold bushing tech, and interference bushing craft, the wire drawing dies are tightening connect with the steel jacket.4. fast ... 92.5 degree. 7.if inner bore below 6.0, our wortle life is 25 tons ; if over 6.0, the wire drawing ...