5.1.3 Sales last quarter of each year send to customers, "Customer Satisfaction Survey", survey customers on the quality of their products, price, service, satisfaction with pay, the degree of understanding of the product and meet customers potential demand, according to sales the statistical analysis of survey information, see the specific "statistical techniques control procedures"; <br>5.1.4 application information gathered from the feedback process for monitoring and maintaining product requirements of risk management and product realization or potential inputs to improve the potential entry process;
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