... is very low due to the close casting tolerances. Heat treatment of pressure die casting is not possible but due to the ... could be like this: 1.mould making 2.casting ( die casting, sand casting, gravity casting, low pressure casting), 3.welding, (optional) 4.surface treatment, ... QC and package, 7.delivery. Material could be aluminium, brass, copper, iron, steel, magnesium, zinc, etc. B. Or the process ...