Steel precision casting part 1.Material:alloy steel/carbon steel/stainless steel 2. ... casting parts material: cast iron,steel,stainless steel,brass,copper,aluminum,zinc etc2.Casting parts process: sand casting,investment casting,lost ... iron, steel, stainless steel,2sandgreen sand, sodium silicate sand etc3mahinelathe, CNC, drilling machine, milling machine, boring machine, planting machine, machining ...