... Agricultural,Engineering,Automotive Casting,Precision Casting,Carbon Steel Casting Precision Casting,Carbon Steel Casting,Casting 1) Molding ... casting,Sodium Silicate Technology,Colloidal Silica 2) Material: Carbon steel, Alloy steel, Stainless steel, Brass, Gray ... Ductile Iron 3) Molding: Hand made,Wax (suspension) line 4) Possible Heat Treatment: Normalizing ,Annealing, Quenching, Tempering ...