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About product and suppliers:
        Alibaba.com offers 3,211 as competence products. such as free samples, paid samples. 

There are 3,211 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 1,052 with ISO9001, 134 with ISO/TS16949, and 133 with Other certification.
        
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