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About product and suppliers:
        Alibaba.com offers 245 cover ampoule products. About 6% of these are led bulb lights, 4% are bottles, and 2% are skin care serum. 

A wide variety of cover ampoule options are available to you, such as e27, e14, and b22. You can also choose from free samples. 

There are 165 cover ampoule suppliers, mainly located in Asia. The top supplying countries or regions are China, South Korea, and Taiwan, China, which supply 91%, 6%, and 1% of cover ampoule respectively. 

Cover ampoule products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 23 with ISO9001, 8 with GMP, and 8 with Other certification.