mini glass oil dropper We have always been committed to better production and production capacity of cosmetic packaging bottles, about our workshop product quality management system, the second is to investigate the collection of product use effect and improvement requirements. The purpose of the survey is to collect information on the improvement of product quality. The contents of the investigation can include two aspects :(1) whether the specified quality standards or product quality objectives are met in actual use; (2) The user's opinions and new requirements for improving the product in use. The investigation process can be combined with the technical service process. For important products, enterprises can also organize special product quality investigation teams to solicit opinions on the use of the site. The data collected in the investigation must be systematically sorted out and analyzed, as feedback data to further improve product quality, and transmitted to the releva…