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About product and suppliers:
        Alibaba.com offers 823 cob pmma 5w products. such as free samples. 

There are 823 cob pmma 5w suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of cob pmma 5w respectively. 

Cob pmma 5w products are most popular in Western Europe, South America, and Southern Europe. 

You can ensure product safety by selecting from certified suppliers, including 89 with ISO9001, 55 with Other, and 7 with ISO14001 certification.