in order to improve the quality of products, the quality control unit of Yeganeh Zorouf Sepehr Company inspects and controls all stages of production precisely from entry of raw materials to warehouse to exit of ready-to-supply products. This company guarantees the maximum quality standards of products by observing the health and quality principles of products. Meanwhile this company has received the national Iranian standard and controls the executive quality processes in the products production cycle through strict monitoring. It should be mentioned that all raw materials consumed in production of containers have health certifications.