... investment casting,Sodium Silicate Technology,Colloidal Silica 2) Material: Carbon steel, Alloy steel, Stainless steel, Brass, Gray iron, Aluminum, Ductile Iron 3) Molding: Hand ... : Agricultural,Engineering,Automotive industry,Forklift Parts,Mining Machinery,Furnace Parts6) Part Unit Weight range: Chinese loss wax from 0.01-100kg ...