Duo Liang Enterprise Co., Ltd. passed the ISO9001:2015 quality management system certification

SO 9001 is transformed from the world’s first quality management system standard BS 5750 (written by BSI). ISO 9001 is by far the most mature quality framework in the world. More than 750,000 organizations in 161 countries/regions are working Use this framework.


ISO 9001 not only sets standards for the quality management system, but also for the overall management system. It helps all kinds of organizations to achieve success through customer satisfaction improvement, employee motivation and continuous improvement.


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