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GREWIN as manufacture for Toroidal Transformer, EI power Transformer etc. We have abtained ISO, CE, VDE, RoHS, ISO2000 approval, . Our company have many advantages which can be your honesty and reliable supplier:

We aim to exceed our customers' expectations, with continuously improved service, quality products, competitive prices and the fastest delivery. Our service staff have rich experiences in the business. We understand the strictly quality requirements is the first.

We could provide our customer with CE or VDE approved products via cooperating with our partners closely. We sincerely welcome any company to contact us to define your needs and we can develop a plan to accomplish your goals.