Recently, the engineering center of ULP. successfully passed the CNAS (China National Accreditation Service for Conformity Assessment) laboratory accreditation revision supervision review and extension review, and was awarded the CNAS again. The new version of "National Laboratory Accreditation Certificate". This accreditation includes two aspects. First, the accreditation criteria ISO/IEC 17025 has been updated from the 2005 version to the 2017 version. The new accreditation criteria have stricter and more standardized requirements; the second is the expansion of testing standards. It has been expanded to 22 items, and 11 new criteria have been added. The detection capability has reached a new level.Since it first obtained the accreditation qualification of CNAS national laboratory in May 2019, ULP Science and Technology Engineering Center has been adhering to the continuous pursuit of quality, practicing the quality policy of "fairness, science, accuracy and satisfaction", constantly blazing new trails and striving for excellence. This time, ULP Science and Technology Engineering Center once again passed the new national (CNAS) laboratory accreditation and extension review after the revision, which shows that the China National Accreditation Service for Conformity Assessment fully affirms the comprehensive strength of our engineering center and demonstrates ULP In terms of product research and development and quality inspection, it has reached a new international level, and the internal management is more standardized, which also shows the further improvement of the company's brand value and product market competitiveness.