Yongji Electric continuously strengthens the construction of quality assurance system, and has introduced IRIS management system in international railway industry standard in 2008 to further enhance the quality process control mangement, to ensure the process stability in terms of production process ability of products, and also adopted RAMS(reliability, availability, maintainability and safety) procedure management method to ensure the reliability, availability, maintainability and safety of products within life cycles of products, so as to fully satisfy users' demands.


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