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About product and suppliers:
        Alibaba.com offers 2,206 negative ion card products. About 29% of these are plastic cards, 28% are other healthcare supply, and 2% are access control card. 

A wide variety of negative ion card options are available to you, such as free samples, paid samples. 

There are 2,206 negative ion card suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of negative ion card respectively. 

Negative ion card products are most popular in North America, Northern Europe, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 459 with Other, 107 with ISO9001, and 8 with BSCI certification.