... drawing copper,steel,iron 4.Blank and finished products carbide die for nail, tungsten carbide plugs, louver dies: Products features: 1. wear-resisting ... , it hardness reach 92.5 degree. 7.if inner bore below 6.0, our wortle life is 25 tons ; if over ... press, the defects are effectively stopped. offering a good environment to get blanks with uniform pressed dencity.3.the maximum sintering ...