... steel, Brass, Gray iron, Aluminum, Ductile Iron3) Molding: Hand made,Wax (suspension) line 4) Possible Heat Treatment: Normalizing ,Annealing, Quenching, Tempering ... : Lager Platte left, right/ Corner casting / Gears / Pipe fittings...9) Manufacturer certification: ISO9001 (2000) / TS16949 Precision Casting,Investment Casting,Lost ...