ABBASALI 2.2kw 3hp 2065 air compressor head with pulley compressor pump: * aluminium material cylinder * Italy type *The crankshaft, connecting rod, piston: well balanced, wear resistance, high strength, smooth running balance. *Cylinder: made of high-grade Aluminium, strength, good lubricity. *Piston ring: good elasticity, excellent wear resistance, low oil consumption, not easy to make the valve group carbon deposition and loss of oil to burn the crankshaft and connecting rod.