Sunday, September 5; A meeting of technical and quality managers between Part Koushan and Serkan Filtration Company was held at Part Kushan factory. This meeting was held with the presence of managers and experts from the quality control, production, quality assurance, and commercial units of both companies. In this meeting, it was emphasized that The primary principle of successful presence in the market is to pay attention to the quality of manufactured products, which is always considered as a principle. Also, the strengths and weaknesses of the products were discussed and the importance of reducing possible damages, and maintaining and improving the quality of both companies’ products was emphasized. Technical reviews of the compound of manufactured parts were discussed to improve the product quality.