... :Wax line 2) Heat Treatment:Quenching,Tempering Valve Body,Lost wax Casting products,Valve Seat Alloy Steel Casting,Lost wax Casting products ... ) Material: Carbon steel, Alloy steel, Stainless steel, Brass, Gray iron, Aluminum, Ductile Iron 3) Molding: Hand made,Wax (suspension) line 4) Possible ...