Reciprocating, Two stage, Air cooled Industrial Air Compressor Block Finger Plate Type Inlet & Discharge Alloy Metal Valves Forged Steel Crank Shaft for Longer Life and Extreme Duties Aluminum Die Forged Connecting Rods for Light Weight Power Transmission Aluminum Alloy Light Weight Heavy Duty Pistons Graphite Alloy Long Life Piston Rings Interstage Air Cooled Copper cooler(s) with Fins for Efficient Intercooling Copper Discharge Tube for Heat Removal Inter stage air Piping Aerodynamic Compressor flywheel for Blasting Cooling Air on Compressor Block and Intercoolers