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: 2022 annual iso9001-2015 quality management system internal auditor training; Skillfully apply relevant standards of ISO 9001:2015 quality management system and establish an ISO 9001:2015 quality management system in line with inte...; Date：>2022-03-15

: Midea Weiqing's annual audit was successfully completed; On January 12, 2022, Midea Weiqing's annual audit was successfully completedIn 2022, yulin5658.com will continue to be customer experience oriented, ...; Date：>2022-01-14

: Fire drill; On December 10, 2021, an on-site fire drill was held to give instructions and convey the emergency drill work.; Date：>2022-01-14

: Baishide COMPANY visit inspection guidance; Baishide COMPANY For the on-site production and quality, please refer to the attached process/system audit table.; Date：>2021-10-23

: On October 22nd, 2021, a new branch - Onward 3PL Warehouse will be established in the United States; In October 2021, a new division will be established in the United States - Onward 3PL Warehouse (third-party logistics), please visit http://onward3...; Date：>2021-12-14

: Midea-Little Swan Inspection Guide; On September 27, Midea-Little Swan visited our factory and passed the audit system smoothly.; Date：>2021-10-23

: The origin of the LED lamp; In the 1960s, LED was developed by scientists and technologists based on the principle of semiconductor PN junctionLight-emitting diode。At that time, L...; Date：>2021-12-14

: Principle of LED lamp; The LED (Light Emitting Diode) , a Light-Emitting Diode, is a solid semiconductor device that converts electrical energy into visible Light. It conv...; Date：>2021-09-29

: Principle of LED light bead; The terminal voltage of the PN junction forms a certain potential barrier. When a positive bias voltage is applied, the barrier drops and most carriers in t...; Date：>2021-10-23

: Guide for installation of light strips; 1, indoor installation: LED light belt for indoor decoration, because do not have to withstand the wind and rain, so the installation is very simple. Take t...; Date：>2021-10-15