1)Material:Alloy Steel,Stainless steel 2)Molding:Hand made,Wax line Precision Casting,Steel Casting,Stainless ... process: Loss wax investment casting,Sodium Silicate Technology,Colloidal Silica 2) Material: Carbon steel, Alloy steel, Stainless steel, Brass, ... Gray iron, Aluminum, Ductile Iron 3) Molding: Hand made,Wax (suspension) line 4) Possible Heat Treatment: Normalizing ,Annealing ...