Kolben International offers Graded Cast Iron Cylinder Liners. Kolben International also manufacture and export wide Freon, ammonia and air compressor spares, expansion valves, solenoid valves, thermostats, refrigeration controls, relief valves, shell and tube type condensers and chillers. The Company also offers replacement compressor spares like piston, piston rings, connecting rod, cylinder liners, valve plates, mechanical seal and oil pumps. The Graded Cast Iron Cylinder Liners are centrifugally casted in electric furnace. The Graded Cast Iron Cylinder Liners undergo flower honing process on specialized honing machine.