... Zinc, Nickel,Silver,Tin,chrome,gold,Sand blasting.PolishingPaintingHeat treatmentEquipments:For castings: medium frequency induction furnace, coal furnace, sand blaster ... Inspection equipments:spectrum analysis instrument, metallurgical analysis, tensile strength tester, hardness tester, Roughness tester, deflection tester impact test machine, projector,Altimeter,Scale Micrometer etc. Packing ...