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        | Techniques > Sand casting |  
          
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            | This casting technique has the least limit as far as a weight and quantity is concerned. Small quantity can be done by hand while large quantity can be done by automatic
 forming machines.
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            | Materials: Gray iron, Ductile iron, Abrasion resistant iron, Carbon steel, Alloy steel, Al alloy
 Size scope: 5mm to 3000mm
 Weight scope: a few grams to 5000KGS
 Linear tolerance: CT9-11
 Surface treatment: Powder coating, Painting, Electrophoresis, alvanizing
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