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About product and suppliers:
        Alibaba.com offers 236 coc test kit strip products. such as free samples. 

There are 236 coc test kit strip suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and Spain, which supply 98%, 1%, and 1% of coc test kit strip respectively. 

Coc test kit strip products are most popular in Africa, Western Europe, and North America. 

You can ensure product safety by selecting from certified suppliers, including 112 with ISO13485, 36 with Other, and 34 with ISO9001 certification.