Cylinder : Special cast Iron, Deep Finned for quick heat dissipation.Piston : Low expansion Alluminium Alloy.Valve Plate : Special Steel Material for high Resistance and high Efficiency.Crank Shaft : Dynamically balanced with Roller/Ball bearings.Inter / After Cooler : Specially designed cooler to keep the temperature low.Pressure Switch : Diaphragm operated on and off Pressure Switch With Auto-venting and No-Load Starting TECHNICAL SPECIFICATION