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About product and suppliers:
        Alibaba.com offers 62,292 competence products. such as free samples, paid samples. 

There are 62,054 competence suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Vietnam, which supply 98%, 1%, and 1% of competence respectively. 

Competence products are most popular in North America, South America, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 7,721 with Other, 4,013 with ISO9001, and 470 with BSCI certification.