More than 20 years of work has made the Ingersoll-Rand 750 air compressor be on the edge of being scrapped. The efficiency was low, the temperature was too high and the engine crankshaft was locked.
 
In May of 2004, the air compressor was sent to Jereh. Jereh finished the overhaul of the full machine half a month in advance with the fastest delivery of parts, which won the customer's praise.