... , Brass, Gray iron, Aluminum, Ductile Iron3) Molding: Hand made,Wax (suspension) line 4) Possible Heat Treatment: Normalizing ,Annealing, Quenching, ... industry6) Part Unit Weight range: Chinese loss wax from 0.01-100kg, Japanese loss wax from 0.001-80kg.7) Wall thickness requirements: ... Chinese lost wax min 1.5mm, wide/length ...