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Tianyi is a comprehensive electrical equipment manufacturing enterprise combining the R&D,Website:http://www.tianyipower.com, manufacturing of the distribution transformer, box-type substation and etc. Tianyi has passed the ISO9001 international quality syetem, ISO14001 environmental management system, T28001 OHS system and so on. Tianyi sales more than 20,000 PCS distribution transformers yearly in the domestic and global market.
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