R&D and QA

AAR Certificate

TYHI has professional production lines covering the whole process from smelting to wheelsets assembly. We have obtained qualifications and certifications like ISO, IEC, IRIS, CRCC, AAR, TSI, DB, MOLIT and RISAS, etc. More than 5,000,000 high-quality wheels, axles, gearboxes and wheelsets have been exported to over 50 countries and regions.


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