Oil and gas extracted from the depths of the earth can not be used without lengthy processes. The petrochemical industry provides the conditions for the use of this oil and gas for various industries and other uses. Today, in addition to consumption in the field of vehicle fuel, engine oil, etc., oil and gas products are increasingly used in the manufacture of parts required by various industries. Therefore, non-destructive tests play an important role in the petrochemical industry to determine the ingredients of oil and gas products, hardness measurement and monitoring the preventive status of petrochemical refineries. Fanun Afzar Engineering and Trading Company has been serving this industry with the support of the reliable experiences of its engineers and experts in the field of non-destructive tests side by side with the petrochemical industries of our beloved country Iran.