Minghui Electric has continuously increased investment in technology research and development, obtained many related knowledge patents, passed several international authoritative certifications, and cooperated with many scientific research institutions at home and abroad. At present, the company's self-developed MHZB2 series miniature circuit breakers, MHZM3D-250 two-pole high voltage DC molded case circuit breakers, ML5 series electromagnetic residual current operated circuit breakers and other products have reached the industry and international leading level in technical performance indicators.

•    Wantai certification: ISO9001, ISO24001, ISO45001

•    Tool application: FEMA, 8D, fishbone diagram, 6 Sigma, etc.

•    Whole process control: incoming material inspection, in-process inspection, finished product inspection