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About product and suppliers:
            30,341 toroidal core products are offered for sale by suppliers on, of which transformers accounts for 67%, magnetic materials accounts for 12%, and silicon steel accounts for 1%. 

A wide variety of toroidal core options are available to you, 

There are 30,260 suppliers who sells toroidal core on, mainly located in Asia. The top countries of suppliers are India, China, and Taiwan, China, from which the percentage of toroidal core supply is 1%, 99%, and 1% respectively.