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About product and suppliers:
        Alibaba.com offers 2,593 step-up/down transformer products. About 90% of these are transformers. 

A wide variety of step-up/down transformer options are available to you, such as high frequency, power, and electronic. You can also choose from single, three. As well as from free samples, paid samples. 

There are 2,573 step-up/down transformer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 98%, 1%, and 1% of step-up/down transformer respectively. 

Step-up/down transformer products are most popular in Southeast Asia, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,661 with ISO9001, 545 with ISO14001, and 313 with Other certification.
        
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