Shot blasting is a method used to clean, peen or polish metal. Shot blasting is used in almost every industry that uses metal, including construction, foundry, aerospace, automotive, shipbuilding, rail etc. There are two technologies used in shot blasting: (1) Wheel blasting, (2)Air blasting
Sandblasting is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a rough surface, roughen a smooth surface and shape a surface or to remove the surface contaminants. Sand used to be the most commonly used material, but since the lung disease silicosis is caused by extended inhalation of the dust created by sand, other materials are now used in its place.