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About product and suppliers:
        Alibaba.com offers 3,226 as competence products. such as free samples, paid samples. 

There are 3,226 as competence suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of as competence respectively. 

As competence products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,156 with ISO9001, 124 with Other, and 123 with ISO/TS16949 certification.