Any complex structure can be formed through casting moulds as the metal gets into very small sections due to liquidity.
All type of materials can be easily casted.
You do not need to produce in bulk. An ideal way of casting is to produce in small quantity.
The properties associated with the casting process are all the same in every way due to equal cooling rate.
Casting moulds allows you to produce in any quantity up-to 200 tons which is a very high amount.
Casting is one of the cheapest way of producing complex mechanical structures.
Very highly resistant metals and alloys which cannot be used mechanically can be casted. By casting these alloys and metals can also be used.
Many big structures, machineries and other frames which were manufactured by combining a lot of small pieces can be manufactured easily by casting moulds.
The best use of iron casting is for complex mechanical structures that need special mechanical properties at various directions. These structures are made by adding up perfect alloys and impurities which make the structure according to the need. For example, if some material needs to be hard and tough, then the quantity of iron can be increased to make the component more tough.