Tianjin Grewin was established in 1995 and specialized in the manufacture of transformer, current transformers, chokes, monitoring systems and cable tester etc. In China. these products widely used in communications, power energy, industrial control, medical equipments etc. after more than 24 years' development, we totally have 16 producing lines for transformers and 5 producing lines for monitoring systems. Now we have abtained the CE, ISO9001, CB, SGS and IEC certificates and we have our own brand " GREWIN". We have established long-term trade relationships with customers from Germany, Russia, Ukraine, USA, Canada, Australia, Brazil, India, Malaysia, Indonesia etc. Including more than 100 countries. " Quality and Honesty First" is the business philosophy we always adhere to. Creation". Make Grewin known by the world in electrical industry.
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