... and hard wire Natural Diamond Drawing Dies1.Core: Natural diamond 2.Case: Stainless steel3.Advantage: a)good durability b)high efficiency ... to be gained smooth face and extruded with high speed.2.Increasing the life of drawing wire,also decreasing the risks ... : 25x12mm,28x11mm,30x15mm,25x10mm,24x10mm,etc. Tolerance:0/-0.001mm----0/-0.1mmWeight (fen)4681012141618202530ΦXh(mm)1.5X0.82X12.9X0.22.5X1.52.7X1 ...