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Let's take a look at the classification of rails.
Along with the progress of social economic growth, all kinds of steel products have captured the attention of this current market...
Each country in the world has its own standards for the production of rails, and the classification methods are also different.
In 2014, our laborary had been certified by CNAS (China National Accreditation Service for Conformity Assessment).
In 2013, Hebei Yongyang Product was awarded ISO9001:2008 Certificate.
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