1. The steel mold is sufficient when pulling soft metals (such as gold and silver), and the steel mold can have multiple holes with different apertures.

2. Carbide mold-drawn steel wire (steel wire) generally adopts carbide mold (Tungstencarbidenib). The typical structure of this mold is a cylindrical (or slightly tapered) carbide core tightly inlaid In a circular steel case, the inner core hole of the mold core has a bell mouth (Bellradius), entrance cone (Entranceangel), deformation (working) cone (approachangle), sizing belt (bearing) and exit angle (backrelief) . Drawing die

3. Steel wire die-drawing non-ferrous metal wire, such as copper and aluminum, also uses wire drawing die similar to steel wire die. The shape of inner hole is somewhat different. Drawing die

4. Polycrystalline mold-the thin wire can be used for polycrystalline mold (artificial diamond), as well as the drawing mold for natural diamond.