... steel 3.Implemented as drawing for soft and hard wire PolyCrystal Diamond Drawing Dies1.Core: PolyCrystal DiamondImported Core ... drawing dies5. Gain easily long term and bright wire material of sable diemensions.Polycrystal Drawing Dies---- Domestic ... tungsten and copper plated steel wire etc.). Suitable for drawing platinum rhodium wire, gold wire,silver wire,copper,aluminum, molybdenum,nickel, ...