1.Core: Natural diamond 2.Case: Stainless steel 3.Implemented as drawing tools for soft and hard wire Natural Diamond Drawing Dies1.Core: Natural ... (stainless steel,tungsten and copper platedsteel wire etc.).Suitable for drawing platinum rhodium wire,gold wire,silver wire,copper,aluminum, molybdenum,nickel,tined copper, ... request,we can do according to customer requirement Diamond Wire Drawing Dies