... casting custom aluminium sand castingslarge custom aluminium sand castings1.Sand casting,Aluminium sand casting,Brass sand casting 2. ... , Natural oxidation, Black oxidation,hot galvanizedPlating: Zinc, Nickel,Silver,Tin,chrome,gold,Sand blasting.PolishingPaintingHeat treatmentEquipments ... : medium frequency induction furnace, coal furnace, sand blaster machine, wax injection machine, Heat treatment ...