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About product and suppliers:
        Alibaba.com offers 4,232 optical fiber diameter products. such as free samples, paid samples. 

There are 4,232 optical fiber diameter suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of optical fiber diameter respectively. 

Optical fiber diameter products are most popular in Western Europe, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 1,104 with ISO9001, 328 with Other, and 224 with ISO14001 certification.