1)Process:Colloidal Silica Technology 2)Material:Alloy steel,Stainless steel Carbon steel casting,Precision casting,Casting Carbon steel casting,Precision casting,Casting 1) Molding 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 ...